--- Lib/subprocess.py.orig	2008-10-01 11:37:34.034500000 -0700
+++ Lib/subprocess.py	2008-10-01 12:35:10.018875000 -0700
@@ -766,11 +766,15 @@
                            startupinfo, creationflags, shell,
                            p2cread, p2cwrite,
                            c2pread, c2pwrite,
-                           errread, errwrite):
+                           errread, errwrite, sys=sys):
             """Execute program (MS Windows version)"""
 
             if not isinstance(args, types.StringTypes):
                 args = list2cmdline(args)
+            if isinstance(args, unicode):
+                args = args.encode(sys.getfilesystemencoding())
+            if isinstance(executable, unicode):
+                executable = executable.encode(sys.getfilesystemencoding())
 
             # Process startup details
             if startupinfo is None: