hi, I don't know if you have fixed this issue yet, but I will add my 2 cents for now... I see 2 potential problems with this ...1) because the URL path contains a space (ie, Program Files) you should wrap the entire path and command in quotes (ie. "c:\program files\wpi\common\installer.hta" ) the other problem that I see, and I MAY be wrong about this, is that the path should contain backslashes (ie, \ ) not forward slashes (ie, \ ) but I am not sure if this applies to your situation or if there may be something related to the internal scrpting of the WPI program... good luck with that...