I have a similar problem, though I'm sure I can work around it... I use autoit scripts to do silent installs and if I use them on a computer they work fine. However if I use them with WPI for some reason it gets the path wrong. For instance I have firefox script compiled as a exe, and to avoid clutter I put the actually firefox install exe in a subdirectory. If I execute the compiled script firefox install flawlessly, however if I use WPI to execute it, it executes the script but then the script errors and says it can't find the firefox install exe.. What i will probably do is recompile the script without using the subdirectory... But i was just wondering if anyone had any ideas on this other then that. Thanks