Sync from development - prepare for v0.1.6.2

CHANGELOG.md

@@ -1,28 +1,31 @@
 # Jackify Changelog
 
-## v0.1.6 - Advanced Proton Management & Lorerim Support
+## v0.1.6.2 - Minor Bug Fixes
+**Release Date:** October 23, 2025
+
+### Bug Fixes
+- **Improved dotnet4.x Compatibility**: Universal registry fixes for better modlist compatibility
+- **Fixed Proton 9 Override**: A bug meant that modlists with spaces in the name weren't being overridden correctly
+- **Removed PageFileManager Plugin**: Eliminates Linux PageFile warnings
+
+---
+
+## v0.1.6.1 - Fix dotnet40 install and expand Game Proton override
+**Release Date:** October 21, 2025
+
+### Bug Fixes
+- **Fixed dotnet40 Installation Failures**: Resolved widespread .NET Framework installation issues affecting multiple modlists
+- **Added Lost Legacy Proton 9 Override**: Automatic ENB compatibility for Lost Legacy modlist
+- **Fixed Symlinked Downloads**: Automatically handles symlinked download directories to avoid Wine compatibility issues
+
+---
+
+## v0.1.6 - Lorerim Proton Support
 **Release Date:** October 16, 2025
 
-### Major New Features
-- **Dual Proton Configuration**: Separate Install Proton and Game Proton version selection in Settings
-  - **Install Proton**: Optimized for modlist installation and texture processing (Experimental/GE-Proton 10+ recommended for performance)
-  - **Game Proton**: For game shortcuts (supports any Proton 9+ version)
-  - Independent configuration allows users to optimize for both installation speed and game compatibility
-
-- **Lorerim Proton Override**: Automatic Proton 9 selection for Lorerim modlist installations
-  - Priority system: GE-Proton9-27 → Other GE-Proton 9 versions → Valve Proton 9 → user settings fallback
-  - User notification when override is applied
-  - Case-insensitive detection for Lorerim modlists
-
-- **Configurable Component Installation Method**: User-selectable toggle in Settings
-  - **Optimized Mode** (default): Protontricks for dotnet40 (reliable), winetricks for other components (fast)
-  - **Legacy Mode**: Protontricks for all components (slower but maximum compatibility)
-
-### Engine & Technical Improvements
-- **jackify-engine v0.3.17**: Latest engine version with performance improvements
-- **Windows 10 Prefix Timing**: Improved timing to match legacy script behavior
-- **Self-Updater Enhancement**: Fixed auto-restart checkbox functionality
-- **ProtontricksHandler**: Updated constructor calls across codebase for consistency
+### New Features
+- **Lorerim Proton Override**: Automatically selects Proton 9 for Lorerim installations (GE-Proton9-27 preferred)
+- **Engine Update**: jackify-engine v0.3.17
 
 ---
 

jackify/__init__.py

@@ -5,4 +5,4 @@ This package provides both CLI and GUI interfaces for managing
 Wabbajack modlists natively on Linux systems.
 """
 
-__version__ = "0.1.6"
+__version__ = "0.1.6.2"

jackify/backend/handlers/modlist_handler.py

@@ -71,16 +71,19 @@ class ModlistHandler:
     }
     
     # Canonical mapping of modlist-specific Wine components (from omni-guides.sh)
+    # NOTE: dotnet4.x components disabled in v0.1.6.2 - replaced with universal registry fixes
     MODLIST_WINE_COMPONENTS = {
-        "wildlander": ["dotnet472"],
-        "librum": ["dotnet40", "dotnet8"],
-        "apostasy": ["dotnet40", "dotnet8"],
-        "nordicsouls": ["dotnet40"],
-        "livingskyrim": ["dotnet40"],
-        "lsiv": ["dotnet40"],
-        "ls4": ["dotnet40"],
-        "lorerim": ["dotnet40"],
-        "lostlegacy": ["dotnet48"],
+        # "wildlander": ["dotnet472"],  # DISABLED: Universal registry fixes replace dotnet472 installation
+        # "librum": ["dotnet40", "dotnet8"],  # PARTIAL DISABLE: Keep dotnet8, remove dotnet40
+        "librum": ["dotnet8"],  # dotnet40 replaced with universal registry fixes
+        # "apostasy": ["dotnet40", "dotnet8"],  # PARTIAL DISABLE: Keep dotnet8, remove dotnet40
+        "apostasy": ["dotnet8"],  # dotnet40 replaced with universal registry fixes
+        # "nordicsouls": ["dotnet40"],  # DISABLED: Universal registry fixes replace dotnet40 installation
+        # "livingskyrim": ["dotnet40"],  # DISABLED: Universal registry fixes replace dotnet40 installation
+        # "lsiv": ["dotnet40"],  # DISABLED: Universal registry fixes replace dotnet40 installation
+        # "ls4": ["dotnet40"],  # DISABLED: Universal registry fixes replace dotnet40 installation
+        # "lorerim": ["dotnet40"],  # DISABLED: Universal registry fixes replace dotnet40 installation
+        # "lostlegacy": ["dotnet40"],  # DISABLED: Universal registry fixes replace dotnet40 installation
     }
     
     def __init__(self, steam_path_or_config: Union[Dict, str, Path, None] = None, 
@@ -669,6 +672,12 @@ class ModlistHandler:
             return False
         self.logger.info("Step 3: Curated user.reg.modlist and system.reg.modlist applied successfully.")
 
+        # Step 3.5: Apply universal dotnet4.x compatibility registry fixes
+        if status_callback:
+            status_callback(f"{self._get_progress_timestamp()} Applying universal dotnet4.x compatibility fixes")
+        self.logger.info("Step 3.5: Applying universal dotnet4.x compatibility registry fixes...")
+        self._apply_universal_dotnet_fixes()
+
         # Step 4: Install Wine Components
         if status_callback:
             status_callback(f"{self._get_progress_timestamp()} Installing Wine components (this may take a while)")
@@ -737,6 +746,14 @@ class ModlistHandler:
         self.logger.info(f"ModOrganizer.ini backed up to: {backup_path}")
         self.logger.info("Step 6: Backing up ModOrganizer.ini... Done")
 
+        # Step 6.5: Handle symlinked downloads directory
+        if status_callback:
+            status_callback(f"{self._get_progress_timestamp()} Checking for symlinked downloads directory")
+        self.logger.info("Step 6.5: Checking for symlinked downloads directory...")
+        if not self._handle_symlinked_downloads():
+            self.logger.warning("Warning during symlink handling (non-critical)")
+        self.logger.info("Step 6.5: Checking for symlinked downloads directory... Done")
+
         # Step 7a: Detect Stock Game/Game Root path
         if status_callback:
             status_callback(f"{self._get_progress_timestamp()} Detecting stock game path")
@@ -863,21 +880,38 @@ class ModlistHandler:
                 print("Warning: Failed to create dxvk.conf file.")
             self.logger.info("Step 10: Creating dxvk.conf... Done")
 
-        # Step 11a: Small Tasks - Delete Plugin
+        # Step 11a: Small Tasks - Delete Incompatible Plugins
         if status_callback:
-            status_callback(f"{self._get_progress_timestamp()} Deleting incompatible MO2 plugin")
-        self.logger.info("Step 11a: Deleting incompatible MO2 plugin (FixGameRegKey.py)...")
-        plugin_path = Path(self.modlist_dir) / "plugins" / "FixGameRegKey.py"
-        if plugin_path.exists():
+            status_callback(f"{self._get_progress_timestamp()} Deleting incompatible MO2 plugins")
+        self.logger.info("Step 11a: Deleting incompatible MO2 plugins...")
+
+        # Delete FixGameRegKey.py plugin
+        fixgamereg_path = Path(self.modlist_dir) / "plugins" / "FixGameRegKey.py"
+        if fixgamereg_path.exists():
             try:
-                plugin_path.unlink()
+                fixgamereg_path.unlink()
                 self.logger.info("FixGameRegKey.py plugin deleted successfully.")
             except Exception as e:
                 self.logger.warning(f"Failed to delete FixGameRegKey.py plugin: {e}")
-                print("Warning: Failed to delete incompatible plugin file.")
+                print("Warning: Failed to delete FixGameRegKey.py plugin file.")
         else:
             self.logger.debug("FixGameRegKey.py plugin not found (this is normal).")
-        self.logger.info("Step 11a: Plugin deletion check complete.")
+
+        # Delete PageFileManager plugin directory (Linux has no PageFile)
+        pagefilemgr_path = Path(self.modlist_dir) / "plugins" / "PageFileManager"
+        if pagefilemgr_path.exists():
+            try:
+                import shutil
+                shutil.rmtree(pagefilemgr_path)
+                self.logger.info("PageFileManager plugin directory deleted successfully.")
+            except Exception as e:
+                self.logger.warning(f"Failed to delete PageFileManager plugin directory: {e}")
+                print("Warning: Failed to delete PageFileManager plugin directory.")
+        else:
+            self.logger.debug("PageFileManager plugin not found (this is normal).")
+
+        self.logger.info("Step 11a: Incompatible plugin deletion check complete.")
+
 
         # Step 11b: Download Font
         if status_callback:
@@ -1346,19 +1380,210 @@ class ModlistHandler:
                 self.logger.warning("Cannot re-enforce Windows 10 mode - prefix path not found")
                 return
 
-            # Get wine binary path
-            wine_binary = PathHandler.get_wine_binary_for_appid(str(self.appid))
+            # Use winetricks handler to set Windows 10 mode
+            winetricks_handler = WinetricksHandler()
+            wine_binary = winetricks_handler._get_wine_binary_for_prefix(str(prefix_path))
             if not wine_binary:
                 self.logger.warning("Cannot re-enforce Windows 10 mode - wine binary not found")
                 return
 
-            # Use winetricks handler to set Windows 10 mode
-            winetricks_handler = WinetricksHandler()
             winetricks_handler._set_windows_10_mode(str(prefix_path), wine_binary)
 
-            self.logger.info("✓ Windows 10 mode re-enforced after modlist-specific configurations")
+            self.logger.info("Windows 10 mode re-enforced after modlist-specific configurations")
 
         except Exception as e:
             self.logger.warning(f"Error re-enforcing Windows 10 mode: {e}")
 
-# (Ensure EOF is clean and no extra incorrect methods exist below) 
+    def _handle_symlinked_downloads(self) -> bool:
+        """
+        Check if downloads_directory in ModOrganizer.ini points to a symlink.
+        If it does, comment out the line to force MO2 to use default behavior.
+
+        Returns:
+            bool: True on success or no action needed, False on error
+        """
+        try:
+            import configparser
+            import os
+
+            if not self.modlist_ini or not os.path.exists(self.modlist_ini):
+                self.logger.warning("ModOrganizer.ini not found for symlink check")
+                return True  # Non-critical
+
+            # Read the INI file
+            config = configparser.ConfigParser(allow_no_value=True, delimiters=['='])
+            config.optionxform = str  # Preserve case sensitivity
+
+            try:
+                # Read file manually to handle BOM
+                with open(self.modlist_ini, 'r', encoding='utf-8-sig') as f:
+                    config.read_file(f)
+            except UnicodeDecodeError:
+                with open(self.modlist_ini, 'r', encoding='latin-1') as f:
+                    config.read_file(f)
+
+            # Check if downloads_directory or download_directory exists and is a symlink
+            downloads_key = None
+            downloads_path = None
+
+            if 'General' in config:
+                # Check for both possible key names
+                if 'downloads_directory' in config['General']:
+                    downloads_key = 'downloads_directory'
+                    downloads_path = config['General']['downloads_directory']
+                elif 'download_directory' in config['General']:
+                    downloads_key = 'download_directory'
+                    downloads_path = config['General']['download_directory']
+
+            if downloads_path:
+
+                if downloads_path and os.path.exists(downloads_path):
+                    # Check if the path or any parent directory contains symlinks
+                    def has_symlink_in_path(path):
+                        """Check if path or any parent directory is a symlink"""
+                        current_path = Path(path).resolve()
+                        check_path = Path(path)
+
+                        # Walk up the path checking each component
+                        for parent in [check_path] + list(check_path.parents):
+                            if parent.is_symlink():
+                                return True, str(parent)
+                        return False, None
+
+                    has_symlink, symlink_path = has_symlink_in_path(downloads_path)
+                    if has_symlink:
+                        self.logger.info(f"Detected symlink in downloads directory path: {symlink_path} -> {downloads_path}")
+                        self.logger.info("Commenting out downloads_directory to avoid Wine symlink issues")
+
+                        # Read the file manually to preserve comments and formatting
+                        with open(self.modlist_ini, 'r', encoding='utf-8') as f:
+                            lines = f.readlines()
+
+                        # Find and comment out the downloads directory line
+                        modified = False
+                        for i, line in enumerate(lines):
+                            if line.strip().startswith(f'{downloads_key}='):
+                                lines[i] = '#' + line  # Comment out the line
+                                modified = True
+                                break
+
+                        if modified:
+                            # Write the modified file back
+                            with open(self.modlist_ini, 'w', encoding='utf-8') as f:
+                                f.writelines(lines)
+                            self.logger.info(f"{downloads_key} line commented out successfully")
+                        else:
+                            self.logger.warning("downloads_directory line not found in file")
+                    else:
+                        self.logger.debug(f"downloads_directory is not a symlink: {downloads_path}")
+                else:
+                    self.logger.debug("downloads_directory path does not exist or is empty")
+            else:
+                self.logger.debug("No downloads_directory found in ModOrganizer.ini")
+
+            return True
+
+        except Exception as e:
+            self.logger.error(f"Error handling symlinked downloads: {e}", exc_info=True)
+            return False
+
+    def _apply_universal_dotnet_fixes(self):
+        """Apply universal dotnet4.x compatibility registry fixes to ALL modlists"""
+        try:
+            prefix_path = os.path.join(str(self.compat_data_path), "pfx")
+            if not os.path.exists(prefix_path):
+                self.logger.warning(f"Prefix path not found: {prefix_path}")
+                return False
+
+            self.logger.info("Applying universal dotnet4.x compatibility registry fixes...")
+
+            # Find the appropriate Wine binary to use for registry operations
+            wine_binary = self._find_wine_binary_for_registry()
+            if not wine_binary:
+                self.logger.error("Could not find Wine binary for registry operations")
+                return False
+
+            # Set environment for Wine registry operations
+            env = os.environ.copy()
+            env['WINEPREFIX'] = prefix_path
+            env['WINEDEBUG'] = '-all'  # Suppress Wine debug output
+
+            # Registry fix 1: Set mscoree=native DLL override
+            # This tells Wine to use native .NET runtime instead of Wine's implementation
+            self.logger.debug("Setting mscoree=native DLL override...")
+            cmd1 = [
+                wine_binary, 'reg', 'add',
+                'HKEY_CURRENT_USER\\Software\\Wine\\DllOverrides',
+                '/v', 'mscoree', '/t', 'REG_SZ', '/d', 'native', '/f'
+            ]
+
+            result1 = subprocess.run(cmd1, env=env, capture_output=True, text=True)
+            if result1.returncode == 0:
+                self.logger.info("Successfully applied mscoree=native DLL override")
+            else:
+                self.logger.warning(f"Failed to set mscoree DLL override: {result1.stderr}")
+
+            # Registry fix 2: Set OnlyUseLatestCLR=1
+            # This prevents .NET version conflicts by using the latest CLR
+            self.logger.debug("Setting OnlyUseLatestCLR=1 registry entry...")
+            cmd2 = [
+                wine_binary, 'reg', 'add',
+                'HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework',
+                '/v', 'OnlyUseLatestCLR', '/t', 'REG_DWORD', '/d', '1', '/f'
+            ]
+
+            result2 = subprocess.run(cmd2, env=env, capture_output=True, text=True)
+            if result2.returncode == 0:
+                self.logger.info("Successfully applied OnlyUseLatestCLR=1 registry entry")
+            else:
+                self.logger.warning(f"Failed to set OnlyUseLatestCLR: {result2.stderr}")
+
+            # Both fixes applied - this should eliminate dotnet4.x installation requirements
+            if result1.returncode == 0 and result2.returncode == 0:
+                self.logger.info("Universal dotnet4.x compatibility fixes applied successfully")
+                return True
+            else:
+                self.logger.warning("Some dotnet4.x registry fixes failed, but continuing...")
+                return False
+
+        except Exception as e:
+            self.logger.error(f"Failed to apply universal dotnet4.x fixes: {e}")
+            return False
+
+    def _find_wine_binary_for_registry(self) -> Optional[str]:
+        """Find the appropriate Wine binary for registry operations"""
+        try:
+            # Method 1: Try to detect from Steam's config or use Proton from compat data
+            # Look for wine binary in common Proton locations
+            proton_paths = [
+                os.path.expanduser("~/.local/share/Steam/compatibilitytools.d"),
+                os.path.expanduser("~/.steam/steam/steamapps/common")
+            ]
+
+            for base_path in proton_paths:
+                if os.path.exists(base_path):
+                    for item in os.listdir(base_path):
+                        if 'proton' in item.lower():
+                            wine_path = os.path.join(base_path, item, 'files', 'bin', 'wine')
+                            if os.path.exists(wine_path):
+                                self.logger.debug(f"Found Wine binary: {wine_path}")
+                                return wine_path
+
+            # Method 2: Fallback to system wine if available
+            try:
+                result = subprocess.run(['which', 'wine'], capture_output=True, text=True)
+                if result.returncode == 0:
+                    wine_path = result.stdout.strip()
+                    self.logger.debug(f"Using system Wine binary: {wine_path}")
+                    return wine_path
+            except Exception:
+                pass
+
+            self.logger.error("No suitable Wine binary found for registry operations")
+            return None
+
+        except Exception as e:
+            self.logger.error(f"Error finding Wine binary: {e}")
+            return None
+
+ 

jackify/backend/handlers/protontricks_handler.py

@@ -488,7 +488,7 @@ class ProtontricksHandler:
                         if "ShowDotFiles" not in content:
                             logger.debug(f"Adding ShowDotFiles entry to {user_reg_path}")
                             with open(user_reg_path, 'a', encoding='utf-8') as f:
-                                f.write('\n[Software\\Wine] 1603891765\n') 
+                                f.write('\n[Software\\Wine] 1603891765\n')
                                 f.write('"ShowDotFiles"="Y"\n')
                             dotfiles_set_success = True # Count file write as success too
                         else:
@@ -497,7 +497,7 @@ class ProtontricksHandler:
                     else:
                         logger.warning(f"user.reg not found at {user_reg_path}, creating it.")
                         with open(user_reg_path, 'w', encoding='utf-8') as f:
-                             f.write('[Software\\Wine] 1603891765\n') 
+                             f.write('[Software\\Wine] 1603891765\n')
                              f.write('"ShowDotFiles"="Y"\n')
                         dotfiles_set_success = True # Creating file counts as success
                 except Exception as e:

jackify/backend/handlers/winetricks_handler.py

@@ -262,10 +262,20 @@ class WinetricksHandler:
         config_handler = ConfigHandler()
         use_winetricks = config_handler.get('use_winetricks_for_components', True)
 
+        # Legacy .NET Framework versions that are problematic in Wine/Proton
+        # DISABLED in v0.1.6.2: Universal registry fixes replace dotnet4.x installation
+        # legacy_dotnet_versions = ['dotnet40', 'dotnet472', 'dotnet48']
+        legacy_dotnet_versions = []  # ALL dotnet4.x versions disabled - universal registry fixes handle compatibility
+
+        # Check if any legacy .NET Framework versions are present
+        has_legacy_dotnet = any(comp in components_to_install for comp in legacy_dotnet_versions)
+
         # Choose installation method based on user preference and components
-        if use_winetricks and "dotnet40" in components_to_install:
-            self.logger.info("Using optimized approach: protontricks for dotnet40 (reliable), winetricks for other components (fast)")
-            return self._install_components_hybrid_approach(components_to_install, wineprefix, game_var)
+        # HYBRID APPROACH MOSTLY DISABLED: dotnet40/dotnet472 replaced with universal registry fixes
+        if has_legacy_dotnet:
+            legacy_found = [comp for comp in legacy_dotnet_versions if comp in components_to_install]
+            self.logger.info(f"Using hybrid approach: protontricks for legacy .NET versions {legacy_found} (reliable), {'winetricks' if use_winetricks else 'protontricks'} for other components")
+            return self._install_components_hybrid_approach(components_to_install, wineprefix, game_var, use_winetricks)
         elif not use_winetricks:
             self.logger.info("Using legacy approach: protontricks for all components")
             return self._install_components_protontricks_only(components_to_install, wineprefix, game_var)
@@ -453,7 +463,7 @@ class WinetricksHandler:
                     )
 
                     if result.returncode == 0:
-                        self.logger.info(f"✓ {component} installed successfully")
+                        self.logger.info(f"{component} installed successfully")
                         component_success = True
                         break
                     else:
@@ -467,13 +477,13 @@ class WinetricksHandler:
                                 try:
                                     with open(log_path, 'r') as f:
                                         if 'dotnet40' in f.read():
-                                            self.logger.info("✓ dotnet40 confirmed in winetricks.log")
+                                            self.logger.info("dotnet40 confirmed in winetricks.log")
                                             component_success = True
                                             break
                                 except Exception as e:
                                     self.logger.warning(f"Could not read winetricks.log: {e}")
 
-                        self.logger.error(f"✗ {component} failed (attempt {attempt}): {result.stderr.strip()}")
+                        self.logger.error(f"{component} failed (attempt {attempt}): {result.stderr.strip()}")
                         self.logger.debug(f"Full stdout for {component}: {result.stdout.strip()}")
 
                 except Exception as e:
@@ -483,63 +493,70 @@ class WinetricksHandler:
                 self.logger.error(f"Failed to install {component} after {max_attempts} attempts")
                 return False
 
-        self.logger.info("✓ All components installed successfully using separate sessions")
+        self.logger.info("All components installed successfully using separate sessions")
         # Set Windows 10 mode after all component installation (matches legacy script timing)
         self._set_windows_10_mode(wineprefix, env.get('WINE', ''))
         return True
 
-    def _install_components_hybrid_approach(self, components: list, wineprefix: str, game_var: str) -> bool:
+    def _install_components_hybrid_approach(self, components: list, wineprefix: str, game_var: str, use_winetricks: bool = True) -> bool:
         """
-        Hybrid approach: Install dotnet40 with protontricks (known to work),
-        then install remaining components with winetricks (faster for other components).
+        Hybrid approach: Install legacy .NET Framework versions with protontricks (reliable),
+        then install remaining components with winetricks OR protontricks based on user preference.
 
         Args:
             components: List of all components to install
             wineprefix: Wine prefix path
             game_var: Game variable for AppID detection
+            use_winetricks: Whether to use winetricks for non-legacy components
 
         Returns:
             bool: True if all installations succeeded, False otherwise
         """
         self.logger.info("Starting hybrid installation approach")
 
-        # Separate dotnet40 (protontricks) from other components (winetricks)
-        protontricks_components = [comp for comp in components if comp == "dotnet40"]
-        other_components = [comp for comp in components if comp != "dotnet40"]
+        # Legacy .NET Framework versions that need protontricks
+        legacy_dotnet_versions = ['dotnet40', 'dotnet472', 'dotnet48']
+
+        # Separate legacy .NET (protontricks) from other components (winetricks)
+        protontricks_components = [comp for comp in components if comp in legacy_dotnet_versions]
+        other_components = [comp for comp in components if comp not in legacy_dotnet_versions]
 
         self.logger.info(f"Protontricks components: {protontricks_components}")
         self.logger.info(f"Other components: {other_components}")
 
-        # Step 1: Install dotnet40 with protontricks if present
+        # Step 1: Install legacy .NET Framework versions with protontricks if present
         if protontricks_components:
-            self.logger.info(f"Installing {protontricks_components} using protontricks...")
-            if not self._install_dotnet40_with_protontricks(wineprefix, game_var):
+            self.logger.info(f"Installing legacy .NET versions {protontricks_components} using protontricks...")
+            if not self._install_legacy_dotnet_with_protontricks(protontricks_components, wineprefix, game_var):
                 self.logger.error(f"Failed to install {protontricks_components} with protontricks")
                 return False
-            self.logger.info(f"✓ {protontricks_components} installation completed successfully with protontricks")
+            self.logger.info(f"{protontricks_components} installation completed successfully with protontricks")
 
-        # Step 2: Install remaining components with winetricks if any
+        # Step 2: Install remaining components if any
         if other_components:
-            self.logger.info(f"Installing remaining components with winetricks: {other_components}")
+            if use_winetricks:
+                self.logger.info(f"Installing remaining components with winetricks: {other_components}")
+                # Use existing winetricks logic for other components
+                env = self._prepare_winetricks_environment(wineprefix)
+                if not env:
+                    return False
+                return self._install_components_with_winetricks(other_components, wineprefix, env)
+            else:
+                self.logger.info(f"Installing remaining components with protontricks: {other_components}")
+                return self._install_components_protontricks_only(other_components, wineprefix, game_var)
 
-            # Use existing winetricks logic for other components
-            env = self._prepare_winetricks_environment(wineprefix)
-            if not env:
-                return False
-
-            return self._install_components_with_winetricks(other_components, wineprefix, env)
-
-        self.logger.info("✓ Hybrid component installation completed successfully")
+        self.logger.info("Hybrid component installation completed successfully")
         # Set Windows 10 mode after all component installation (matches legacy script timing)
         wine_binary = self._get_wine_binary_for_prefix(wineprefix)
         self._set_windows_10_mode(wineprefix, wine_binary)
         return True
 
-    def _install_dotnet40_with_protontricks(self, wineprefix: str, game_var: str) -> bool:
+    def _install_legacy_dotnet_with_protontricks(self, legacy_components: list, wineprefix: str, game_var: str) -> bool:
         """
-        Install dotnet40 using protontricks (known to work reliably).
+        Install legacy .NET Framework versions using protontricks (known to work more reliably).
 
         Args:
+            legacy_components: List of legacy .NET components to install (dotnet40, dotnet472, dotnet48)
             wineprefix: Wine prefix path
             game_var: Game variable for AppID detection
 
@@ -575,21 +592,28 @@ class WinetricksHandler:
 
             # Detect protontricks availability
             if not protontricks_handler.detect_protontricks():
-                self.logger.error("Protontricks not available for dotnet40 installation")
+                self.logger.error(f"Protontricks not available for legacy .NET installation: {legacy_components}")
                 return False
 
-            # Install dotnet40 using protontricks
-            success = protontricks_handler.install_wine_components(appid, game_var, ["dotnet40"])
+            # Install legacy .NET components using protontricks
+            success = protontricks_handler.install_wine_components(appid, game_var, legacy_components)
 
             if success:
-                self.logger.info("✓ dotnet40 installed successfully with protontricks")
+                self.logger.info(f"Legacy .NET components {legacy_components} installed successfully with protontricks")
+
+                # Enable dotfiles and symlinks for the prefix
+                if protontricks_handler.enable_dotfiles(appid):
+                    self.logger.info("Enabled dotfiles and symlinks support")
+                else:
+                    self.logger.warning("Failed to enable dotfiles/symlinks (non-critical)")
+
                 return True
             else:
-                self.logger.error("✗ dotnet40 installation failed with protontricks")
+                self.logger.error(f"Legacy .NET components {legacy_components} installation failed with protontricks")
                 return False
 
         except Exception as e:
-            self.logger.error(f"Error installing dotnet40 with protontricks: {e}", exc_info=True)
+            self.logger.error(f"Error installing legacy .NET components {legacy_components} with protontricks: {e}", exc_info=True)
             return False
 
     def _prepare_winetricks_environment(self, wineprefix: str) -> Optional[dict]:
@@ -699,13 +723,13 @@ class WinetricksHandler:
                 )
 
                 if result.returncode == 0:
-                    self.logger.info(f"✓ Winetricks components installed successfully: {components}")
+                    self.logger.info(f"Winetricks components installed successfully: {components}")
                     # Set Windows 10 mode after component installation (matches legacy script timing)
                     wine_binary = env.get('WINE', '')
                     self._set_windows_10_mode(env.get('WINEPREFIX', ''), wine_binary)
                     return True
                 else:
-                    self.logger.error(f"✗ Winetricks failed (attempt {attempt}): {result.stderr.strip()}")
+                    self.logger.error(f"Winetricks failed (attempt {attempt}): {result.stderr.strip()}")
 
             except Exception as e:
                 self.logger.error(f"Error during winetricks run (attempt {attempt}): {e}")
@@ -729,7 +753,7 @@ class WinetricksHandler:
             ], env=env, capture_output=True, text=True, timeout=300)
 
             if result.returncode == 0:
-                self.logger.info("✓ Windows 10 mode set successfully")
+                self.logger.info("Windows 10 mode set successfully")
             else:
                 self.logger.warning(f"Could not set Windows 10 mode: {result.stderr}")
 
@@ -768,13 +792,13 @@ class WinetricksHandler:
             success = protontricks_handler.install_wine_components(appid, game_var, components)
 
             if success:
-                self.logger.info("✓ All components installed successfully with protontricks")
+                self.logger.info("All components installed successfully with protontricks")
                 # Set Windows 10 mode after component installation
                 wine_binary = self._get_wine_binary_for_prefix(wineprefix)
                 self._set_windows_10_mode(wineprefix, wine_binary)
                 return True
             else:
-                self.logger.error("✗ Component installation failed with protontricks")
+                self.logger.error("Component installation failed with protontricks")
                 return False
 
         except Exception as e:

jackify/backend/services/automated_prefix_service.py

@@ -50,13 +50,22 @@ class AutomatedPrefixService:
             from jackify.backend.handlers.wine_utils import WineUtils
 
             # Check for Lorerim-specific Proton override first
-            if modlist_name and modlist_name.lower() == 'lorerim':
+            modlist_normalized = modlist_name.lower().replace(" ", "") if modlist_name else ""
+            if modlist_normalized == 'lorerim':
                 lorerim_proton = self._get_lorerim_preferred_proton()
                 if lorerim_proton:
                     logger.info(f"Lorerim detected: Using {lorerim_proton} instead of user settings")
                     self._store_proton_override_notification("Lorerim", lorerim_proton)
                     return lorerim_proton
 
+            # Check for Lost Legacy-specific Proton override (needs Proton 9 for ENB compatibility)
+            if modlist_normalized == 'lostlegacy':
+                lostlegacy_proton = self._get_lorerim_preferred_proton()  # Use same logic as Lorerim
+                if lostlegacy_proton:
+                    logger.info(f"Lost Legacy detected: Using {lostlegacy_proton} instead of user settings (ENB compatibility)")
+                    self._store_proton_override_notification("Lost Legacy", lostlegacy_proton)
+                    return lostlegacy_proton
+
             config_handler = ConfigHandler()
             user_proton_path = config_handler.get_game_proton_path()
 
@@ -2972,14 +2981,115 @@ echo Prefix creation complete.
             logger.error(f"Failed to update registry path: {e}")
             return False
 
+    def _apply_universal_dotnet_fixes(self, modlist_compatdata_path: str):
+        """Apply universal dotnet4.x compatibility registry fixes to ALL modlists"""
+        try:
+            prefix_path = os.path.join(modlist_compatdata_path, "pfx")
+            if not os.path.exists(prefix_path):
+                logger.warning(f"Prefix path not found: {prefix_path}")
+                return False
+
+            logger.info("Applying universal dotnet4.x compatibility registry fixes...")
+
+            # Find the appropriate Wine binary to use for registry operations
+            wine_binary = self._find_wine_binary_for_registry(modlist_compatdata_path)
+            if not wine_binary:
+                logger.error("Could not find Wine binary for registry operations")
+                return False
+
+            # Set environment for Wine registry operations
+            env = os.environ.copy()
+            env['WINEPREFIX'] = prefix_path
+            env['WINEDEBUG'] = '-all'  # Suppress Wine debug output
+
+            # Registry fix 1: Set mscoree=native DLL override
+            # This tells Wine to use native .NET runtime instead of Wine's implementation
+            logger.debug("Setting mscoree=native DLL override...")
+            cmd1 = [
+                wine_binary, 'reg', 'add',
+                'HKEY_CURRENT_USER\\Software\\Wine\\DllOverrides',
+                '/v', 'mscoree', '/t', 'REG_SZ', '/d', 'native', '/f'
+            ]
+
+            result1 = subprocess.run(cmd1, env=env, capture_output=True, text=True)
+            if result1.returncode == 0:
+                logger.info("Successfully applied mscoree=native DLL override")
+            else:
+                logger.warning(f"Failed to set mscoree DLL override: {result1.stderr}")
+
+            # Registry fix 2: Set OnlyUseLatestCLR=1
+            # This prevents .NET version conflicts by using the latest CLR
+            logger.debug("Setting OnlyUseLatestCLR=1 registry entry...")
+            cmd2 = [
+                wine_binary, 'reg', 'add',
+                'HKEY_LOCAL_MACHINE\\Software\\Microsoft\\.NETFramework',
+                '/v', 'OnlyUseLatestCLR', '/t', 'REG_DWORD', '/d', '1', '/f'
+            ]
+
+            result2 = subprocess.run(cmd2, env=env, capture_output=True, text=True)
+            if result2.returncode == 0:
+                logger.info("Successfully applied OnlyUseLatestCLR=1 registry entry")
+            else:
+                logger.warning(f"Failed to set OnlyUseLatestCLR: {result2.stderr}")
+
+            # Both fixes applied - this should eliminate dotnet4.x installation requirements
+            if result1.returncode == 0 and result2.returncode == 0:
+                logger.info("Universal dotnet4.x compatibility fixes applied successfully")
+                return True
+            else:
+                logger.warning("Some dotnet4.x registry fixes failed, but continuing...")
+                return False
+
+        except Exception as e:
+            logger.error(f"Failed to apply universal dotnet4.x fixes: {e}")
+            return False
+
+    def _find_wine_binary_for_registry(self, modlist_compatdata_path: str) -> Optional[str]:
+        """Find the appropriate Wine binary for registry operations"""
+        try:
+            # Method 1: Try to detect from Steam's config or use Proton from compat data
+            # Look for wine binary in common Proton locations
+            proton_paths = [
+                os.path.expanduser("~/.local/share/Steam/compatibilitytools.d"),
+                os.path.expanduser("~/.steam/steam/steamapps/common")
+            ]
+
+            for base_path in proton_paths:
+                if os.path.exists(base_path):
+                    for item in os.listdir(base_path):
+                        if 'proton' in item.lower():
+                            wine_path = os.path.join(base_path, item, 'files', 'bin', 'wine')
+                            if os.path.exists(wine_path):
+                                logger.debug(f"Found Wine binary: {wine_path}")
+                                return wine_path
+
+            # Method 2: Fallback to system wine if available
+            try:
+                result = subprocess.run(['which', 'wine'], capture_output=True, text=True)
+                if result.returncode == 0:
+                    wine_path = result.stdout.strip()
+                    logger.debug(f"Using system Wine binary: {wine_path}")
+                    return wine_path
+            except Exception:
+                pass
+
+            logger.error("No suitable Wine binary found for registry operations")
+            return None
+
+        except Exception as e:
+            logger.error(f"Error finding Wine binary: {e}")
+            return None
+
     def _inject_game_registry_entries(self, modlist_compatdata_path: str):
-        """Detect and inject FNV/Enderal game paths into modlist's system.reg"""
+        """Detect and inject FNV/Enderal game paths and apply universal dotnet4.x compatibility fixes"""
         system_reg_path = os.path.join(modlist_compatdata_path, "pfx", "system.reg")
         if not os.path.exists(system_reg_path):
             logger.warning("system.reg not found, skipping game path injection")
             return
-        
-        logger.info("Detecting and injecting game registry entries...")
+
+        logger.info("Detecting game registry entries...")
+
+        # NOTE: Universal dotnet4.x registry fixes now applied in modlist_handler.py after .reg downloads
         
         # Game configurations
         games_config = {

jackify/backend/services/modlist_service.py

@@ -629,7 +629,8 @@ class ModlistService:
                 'mo2_exe_path': str(context.install_dir / 'ModOrganizer.exe'),
                 'resolution': getattr(context, 'resolution', None),
                 'skip_confirmation': True,  # Service layer should be non-interactive
-                'manual_steps_completed': False
+                'manual_steps_completed': False,
+                'appid': getattr(context, 'app_id', None)  # Fix: Include appid like other configuration paths
             }
 
             # DEBUG: Log what resolution we're passing

jackify/backend/services/native_steam_service.py

@@ -382,8 +382,27 @@ class NativeSteamService:
             # Find the CompatToolMapping section
             compat_start = config_text.find('"CompatToolMapping"')
             if compat_start == -1:
-                logger.error("CompatToolMapping section not found in config.vdf")
-                return False
+                logger.warning("CompatToolMapping section not found in config.vdf, creating it")
+                # Find the Steam section to add CompatToolMapping to
+                steam_section = config_text.find('"Steam"')
+                if steam_section == -1:
+                    logger.error("Steam section not found in config.vdf")
+                    return False
+
+                # Find the opening brace for Steam section
+                steam_brace = config_text.find('{', steam_section)
+                if steam_brace == -1:
+                    logger.error("Steam section opening brace not found")
+                    return False
+
+                # Insert CompatToolMapping section right after Steam opening brace
+                insert_pos = steam_brace + 1
+                compat_section = '\n\t\t"CompatToolMapping"\n\t\t{\n\t\t}\n'
+                config_text = config_text[:insert_pos] + compat_section + config_text[insert_pos:]
+
+                # Update compat_start position after insertion
+                compat_start = config_text.find('"CompatToolMapping"')
+                logger.info("Created CompatToolMapping section in config.vdf")
             
             # Find the closing brace for CompatToolMapping
             # Look for the opening brace after CompatToolMapping

jackify/frontends/gui/main.py

@@ -447,7 +447,7 @@ class SettingsDialog(QDialog):
         self.use_winetricks_checkbox = QCheckBox("Use winetricks for component installation (faster)")
         self.use_winetricks_checkbox.setChecked(self.config_handler.get('use_winetricks_for_components', True))
         self.use_winetricks_checkbox.setToolTip(
-            "When enabled: Uses winetricks for most components (faster) and protontricks only for dotnet40 (more reliable).\n"
+            "When enabled: Uses winetricks for most components (faster) and protontricks for legacy .NET versions (dotnet40, dotnet472, dotnet48) which are more reliable.\n"
             "When disabled: Uses protontricks for all components (legacy behavior, slower but more compatible)."
         )
         component_layout.addWidget(self.use_winetricks_checkbox)