diff --git a/Tools/Psdz/AssemblyPatcher/Program.cs b/Tools/Psdz/AssemblyPatcher/Program.cs
index cd729b0c8..6cb6ea0a1 100644
--- a/Tools/Psdz/AssemblyPatcher/Program.cs
+++ b/Tools/Psdz/AssemblyPatcher/Program.cs
@@ -132,6 +132,12 @@ static int Main(string[] args)
                 string[] files = Directory.GetFiles(assemblyDir, "*.*", SearchOption.AllDirectories);
                 foreach (string file in files)
                 {
+                    string relPath = Path.GetRelativePath(assemblyDir, file);
+                    if (string.IsNullOrEmpty(relPath))
+                    {
+                        continue;
+                    }
+
                     string baseName = Path.GetFileNameWithoutExtension(file);
                     if (string.IsNullOrEmpty(baseName))
                     {
@@ -150,6 +156,13 @@ static int Main(string[] args)
                         continue;
                     }
 
+                    if (relPath.StartsWith("runtimes") ||
+                        relPath.StartsWith("x86") ||
+                        relPath.StartsWith("x64"))
+                    {
+                        continue;
+                    }
+
                     if (baseName.EndsWith("interop", StringComparison.OrdinalIgnoreCase) ||
                         baseName.EndsWith("IDESKernel", StringComparison.OrdinalIgnoreCase) ||
                         baseName.EndsWith("procdump", StringComparison.OrdinalIgnoreCase) ||