Had the same problem. My way: WPI config command1 xcopy "%drive%\_programme\_office\Office2003\Office2003\SilentSetupFile.MST" "D:\" command2 "%drive%\_programme\_office\Office2003\Office2003\setup.exe" Transforms="D:\SilentSetupFile.MST" /qb- command3 del "D:\SilentSetupFile.MST" Had some problems with commandline and %wpipath%, so i use the %drive% variable on USB. Works fine for me!