I have a customer who we built a screensave app for and it installs a configuration directory and a single .scr file in the windows/system32 folder.

Rather than have to manually navigate to the folder and remove it they want a quick method to remove the file. I wrote a .bat file and it works just fine on XP. Customer says it does not work on their Vista machine.

I don't have any experience with Vista so was wondering...

Is it possible for you to post the actionscript you are typing in? It will help to better diagnose the problem.