From 11ab4a7935d67c7afc903cbdbe02f586e479c2c9 Mon Sep 17 00:00:00 2001
From: IceReaper <andremohren@gmail.com>
Date: Tue, 4 Apr 2023 15:01:20 +0200
Subject: [PATCH] Support dos paths in registry.

---
 .../SourceResolvers/RegistryDirectorySourceResolver.cs        | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/OpenRA.Mods.Common/Installer/SourceResolvers/RegistryDirectorySourceResolver.cs b/OpenRA.Mods.Common/Installer/SourceResolvers/RegistryDirectorySourceResolver.cs
index 7ea09f6f30..3f167a7402 100644
--- a/OpenRA.Mods.Common/Installer/SourceResolvers/RegistryDirectorySourceResolver.cs
+++ b/OpenRA.Mods.Common/Installer/SourceResolvers/RegistryDirectorySourceResolver.cs
@@ -9,6 +9,7 @@
  */
 #endregion
 
+using System.IO;
 using System.Runtime.InteropServices;
 
 namespace OpenRA.Mods.Common.Installer
@@ -33,6 +34,9 @@ namespace OpenRA.Mods.Common.Installer
 				if (!(Microsoft.Win32.Registry.GetValue(prefix + source.RegistryKey, source.RegistryValue, null) is string path))
 					continue;
 
+				// Resolve 8.3 format (DOS-style) paths to the full path.
+				path = Path.GetFullPath(path);
+
 				return InstallerUtils.IsValidSourcePath(path, source) ? path : null;
 			}