Drs: update GetDrsProgramPath

remove unused mark from DLSS-RR preset E.

Tries to parse nvngx_config.txt and find the latest override version,
displays it in dropdown.

Needs testing with systems that have modified nvngx_config (eg. through
updating DLSS override with tools), may release test version for it
soon.

nspector/Common/DrsSettingsService.cs

@@ -51,6 +51,11 @@ namespace nspector.Common
                     return fiDbInstaller.DirectoryName;
             }
 
+            string sys32Path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), @"drivers\NVIDIA Corporation\Drs\dbInstaller.exe");
+
+            if (File.Exists(sys32Path))
+                return sys32Path;
+
             return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles),
                 @"NVIDIA Corporation\Drs");
         }

nspector/Common/Helper/DlssHelper.cs

@@ -0,0 +1,125 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.IO;
+
+namespace nspector.Common.Helper
+{
+    public class IniParser
+    {
+        public Dictionary<string, Dictionary<string, string>> Data { get; } = new();
+
+        public void Load(string filePath)
+        {
+            using var reader = new StreamReader(filePath);
+            string? line;
+            string? currentSection = null;
+
+            while ((line = reader.ReadLine()) != null)
+            {
+                line = line.Trim();
+
+                // Skip empty lines and comments
+                if (string.IsNullOrEmpty(line) || line.StartsWith(";") || line.StartsWith("#"))
+                    continue;
+
+                // Section
+                if (line.StartsWith("[") && line.EndsWith("]"))
+                {
+                    currentSection = line.Substring(1, line.Length - 2).Trim();
+                    if (!Data.ContainsKey(currentSection))
+                        Data[currentSection] = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+                }
+                // Key=Value
+                else if (currentSection != null && line.Contains('='))
+                {
+                    int idx = line.IndexOf('=');
+                    var key = line.Substring(0, idx).Trim();
+                    var value = line.Substring(idx + 1).Trim();
+                    Data[currentSection][key] = value;
+                }
+            }
+        }
+
+        public string? GetValue(string section, string key)
+        {
+            if (Data.TryGetValue(section, out var sectionDict) &&
+                sectionDict.TryGetValue(key, out var value))
+            {
+                return value;
+            }
+
+            return null;
+        }
+
+        public List<string> GetSections()
+        {
+            return Data.Keys.ToList();
+        }
+    }
+
+    public static class DlssHelper
+    {
+        private static Dictionary<string, Version> _ngxVersions = FetchVersions();
+
+        // Fetches latest versions installed in C:\ProgramData\NVIDIA\NGX\models\ folder
+        private static Dictionary<string, Version> FetchVersions()
+        {
+            Dictionary<string, Version> versions = new Dictionary<string, Version>();
+
+            try
+            {
+                string ngxDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), @"NVIDIA\NGX\models\");
+                string ngxConfigPath = Path.Combine(ngxDataPath, "nvngx_config.txt");
+                if (!File.Exists(ngxConfigPath))
+                    return versions;
+
+                var ini = new IniParser();
+                ini.Load(ngxConfigPath);
+
+                foreach (string section in ini.GetSections())
+                {
+                    string versionStr = ini.GetValue(section, "app_E658700");
+                    if (string.IsNullOrEmpty(versionStr))
+                        continue;
+
+                    Version ver = new Version(versionStr.Trim());
+
+                    versions[section] = ver;
+                }
+            }
+            catch
+            {
+                versions.Clear();
+            }
+
+            return versions;
+        }
+
+        public static string GetSnippetLatestVersion(string snippet)
+        {
+            if (!_ngxVersions.ContainsKey(snippet))
+                return "unknown";
+            return "v" + _ngxVersions[snippet].ToString();
+        }
+
+        public static string ReplaceDlssVersions(string str)
+        {
+            if (string.IsNullOrEmpty(str))
+                return str;
+
+            if (str.Contains("${DlssVersion}"))
+                str = str.Replace("${DlssVersion}", DlssHelper.GetSnippetLatestVersion("dlss").ToString());
+
+            if (str.Contains("${DlssgVersion}"))
+                str = str.Replace("${DlssgVersion}", DlssHelper.GetSnippetLatestVersion("dlssg").ToString());
+
+            if (str.Contains("${DlssdVersion}"))
+                str = str.Replace("${DlssdVersion}", DlssHelper.GetSnippetLatestVersion("dlssd").ToString());
+
+            return str;
+        }
+    }
+}

nspector/Common/Helper/UserSettings.cs

@@ -22,7 +22,7 @@ namespace nspector.Common.Helper
 
         public bool ShowScannedUnknownSettings { get; set; } = false;
 
-        public List<string> HiddenSettingGroups { get; set; }
+        public List<string> HiddenSettingGroups { get; set; } = new List<string>();
 
         public bool DisableUpdateCheck { get; set; } = false;
 

nspector/Common/Meta/CustomSettingMetaService.cs

@@ -3,6 +3,7 @@ using nspector.Native.NVAPI2;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using nspector.Common.Helper;
 
 namespace nspector.Common.Meta
 {
@@ -42,13 +43,19 @@ namespace nspector.Common.Meta
             }
         }
 
+        private string ProcessNameReplacements(string friendlyName)
+        {
+            // Apply string version replacements here before settings are fully loaded, so that string-to-value mappings can be preserved
+            return DlssHelper.ReplaceDlssVersions(friendlyName);
+        }
+
         public string GetSettingName(uint settingId)
         {
             var setting = customSettings.Settings
                 .FirstOrDefault(x => x.SettingId.Equals(settingId));
 
             if (setting != null)
-                return setting.UserfriendlyName;
+                return ProcessNameReplacements(setting.UserfriendlyName);
 
             return null;
         }
@@ -86,7 +93,7 @@ namespace nspector.Common.Meta
                 {
                     ValuePos = i++,
                     Value = x.SettingValue,
-                    ValueName = _source == SettingMetaSource.CustomSettings ? x.UserfriendlyName : DrsUtil.GetDwordString(x.SettingValue) + " " + x.UserfriendlyName,
+                    ValueName = _source == SettingMetaSource.CustomSettings ? ProcessNameReplacements(x.UserfriendlyName) : DrsUtil.GetDwordString(x.SettingValue) + " " + ProcessNameReplacements(x.UserfriendlyName),
                 }).ToList();
             }
 

nspector/CustomSettingNames.xml

@@ -6,13 +6,14 @@
 			<HexSettingID>0x10E41E01</HexSettingID>
 			<GroupName>5 - Common</GroupName>
 			<MinRequiredDriverVersion>0</MinRequiredDriverVersion>
+			<Description>If enabled, overrides DLSS with the latest global version installed (${DlssVersion}).\r\nNVIDIA periodically push OTA updates for the global version, though it often lags behind the actual latest available online.\r\nOnly DLSS2+ games support the global override, certain games may also disallow using it.</Description>
 			<SettingValues>
 				<CustomSettingValue>
 					<UserfriendlyName>Off</UserfriendlyName>
 					<HexValue>0x00000000</HexValue>
 				</CustomSettingValue>
 				<CustomSettingValue>
-					<UserfriendlyName>On - DLSS overridden by latest available</UserfriendlyName>
+					<UserfriendlyName>On - DLSS overridden by latest installed (${DlssVersion})</UserfriendlyName>
 					<HexValue>0x00000001</HexValue>
 				</CustomSettingValue>
 			</SettingValues>
@@ -23,13 +24,14 @@
 			<HexSettingID>0x10E41E02</HexSettingID>
 			<GroupName>5 - Common</GroupName>
 			<MinRequiredDriverVersion>0</MinRequiredDriverVersion>
+			<Description>If enabled, overrides DLSS-RR with the latest global version installed (${DlssdVersion}).\r\nNVIDIA periodically push OTA updates for the global version, though it often lags behind the actual latest available online.\r\nOnly DLSS2+ games support the global override, certain games may also disallow using it.</Description>
 			<SettingValues>
 				<CustomSettingValue>
 					<UserfriendlyName>Off</UserfriendlyName>
 					<HexValue>0x00000000</HexValue>
 				</CustomSettingValue>
 				<CustomSettingValue>
-					<UserfriendlyName>On - DLSS-RR overridden by latest available</UserfriendlyName>
+					<UserfriendlyName>On - DLSS-RR overridden by latest installed (${DlssdVersion})</UserfriendlyName>
 					<HexValue>0x00000001</HexValue>
 				</CustomSettingValue>
 			</SettingValues>
@@ -40,13 +42,14 @@
 			<HexSettingID>0x10E41E03</HexSettingID>
 			<GroupName>5 - Common</GroupName>
 			<MinRequiredDriverVersion>0</MinRequiredDriverVersion>
+			<Description>If enabled, overrides DLSS-FG with the latest global version installed (${DlssgVersion}).\r\nNVIDIA periodically push OTA updates for the global version, though it often lags behind the actual latest available online.\r\nOnly DLSS2+ games support the global override, certain games may also disallow using it.</Description>
 			<SettingValues>
 				<CustomSettingValue>
 					<UserfriendlyName>Off</UserfriendlyName>
 					<HexValue>0x00000000</HexValue>
 				</CustomSettingValue>
 				<CustomSettingValue>
-					<UserfriendlyName>On - DLSS-FG overridden by latest available</UserfriendlyName>
+					<UserfriendlyName>On - DLSS-FG overridden by latest installed (${DlssgVersion})</UserfriendlyName>
 					<HexValue>0x00000001</HexValue>
 				</CustomSettingValue>
 			</SettingValues>
@@ -156,7 +159,7 @@
 					<HexValue>0x00000004</HexValue>
 				</CustomSettingValue>
 				<CustomSettingValue>
-					<UserfriendlyName>Preset E (unused)</UserfriendlyName>
+					<UserfriendlyName>Preset E</UserfriendlyName>
 					<HexValue>0x00000005</HexValue>
 				</CustomSettingValue>
 				<CustomSettingValue>

nspector/frmDrvSettings.Designer.cs

@@ -570,6 +570,8 @@
             this.txtFilter.Location = new System.Drawing.Point(0, 0);
             this.txtFilter.Margin = new System.Windows.Forms.Padding(4, 3, 4, 3);
             this.txtFilter.Name = "txtFilter";
+            this.txtFilter.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.None;
+            this.txtFilter.AutoCompleteSource = System.Windows.Forms.AutoCompleteSource.None;
             this.txtFilter.Size = new System.Drawing.Size(2118, 35);
             this.txtFilter.TabIndex = 82;
             this.txtFilter.WatermarkText = "Search for setting...";

nspector/frmDrvSettings.cs

@@ -301,7 +301,7 @@ namespace nspector
 
                     var referenceSettings = DrsServiceLocator.ReferenceSettings?.Settings.FirstOrDefault(s => s.SettingId == settingid);
 
-                    var description = settingMeta.Description;
+                    var description = DlssHelper.ReplaceDlssVersions(settingMeta.Description);
                     if (!string.IsNullOrEmpty(settingMeta.AlternateNames))
                         description = $"Alternate names: {settingMeta.AlternateNames}\r\n{description}";
 
@@ -313,7 +313,7 @@ namespace nspector
                     }
                     else
                     {
-                        tbSettingDescription.Text = description;
+                        tbSettingDescription.Text = description.Replace("\\r\\n", "\r\n");
                         tbSettingDescription.Visible = true;
                         tbSettingDescription.BackColor = (referenceSettings?.HasConstraints ?? false) ? Color.LightCoral : SystemColors.Control;
                     }

nspector/nvidiaProfileInspector.csproj

@@ -136,6 +136,7 @@
     <Compile Include="Common\DrsSessionScope.cs" />
     <Compile Include="Common\DrsSettingsMetaService.cs" />
     <Compile Include="Common\DrsUtil.cs" />
+    <Compile Include="Common\Helper\DlssHelper.cs" />
     <Compile Include="Common\Helper\DropDownMenuScrollWheelHandler.cs" />
     <Compile Include="Common\Helper\GithubVersionHelper.cs" />
     <Compile Include="Common\Helper\ListViewGroupSorter.cs" />