From a7938d7e56b2617de6d5b89b1fac245945b92390 Mon Sep 17 00:00:00 2001
From: Daniel Grunwald <daniel@danielgrunwald.de>
Date: Thu, 7 Apr 2011 16:57:04 +0200
Subject: [PATCH] Work around a WPF issue when %WINDIR% is set to an incorrect
 path

---
 src/Main/StartUp/Project/SharpDevelopMain.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Main/StartUp/Project/SharpDevelopMain.cs b/src/Main/StartUp/Project/SharpDevelopMain.cs
index 5670230ec9..81c9fc288f 100644
--- a/src/Main/StartUp/Project/SharpDevelopMain.cs
+++ b/src/Main/StartUp/Project/SharpDevelopMain.cs
@@ -120,6 +120,11 @@ namespace ICSharpCode.SharpDevelop
 				MessageBox.Show("This version of SharpDevelop requires .NET 4.0. You are using: " + Environment.Version, "SharpDevelop");
 				return false;
 			}
+			// Work around a WPF issue when %WINDIR% is set to an incorrect path
+			string windir = Environment.GetFolderPath(Environment.SpecialFolder.Windows, Environment.SpecialFolderOption.DoNotVerify);
+			if (Environment.GetEnvironmentVariable("WINDIR") != windir) {
+				Environment.SetEnvironmentVariable("WINDIR", windir);
+			}
 			return true;
 		}