Bug 241892. Trying loading gtk-sharp from the GAC for detection.

CASA/launcher/Program.cs

@@ -55,8 +55,26 @@ namespace launcher
 
         private static bool IsGTKSharpInstalled()
         {
+
+            // try loading the gtk-sharp assembly
+            try
+            {
+                System.Reflection.Assembly assm = System.Reflection.Assembly.Load("gtk-sharp, Version=2.8.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f");
+                if (assm != null)
+                {
+                    System.Diagnostics.Trace.WriteLine("Found gtk-sharp in the GAC");                    
+                    return true;
+                }
+            }
+            catch (Exception e)
+            {
+
+            }
+
+
             // check the registry for the existence of GTK
             string sGTK = ReadRegKey(Registry.LocalMachine, "Software\\GTK\\2.0", "Path");
+            
             if (sGTK != null)
             {
                 System.Diagnostics.Trace.WriteLine("GTK Path is: " + sGTK);