Scripting

Well I'm not sure if this is where this goes, but I need help writing a script that deletes. Well I'm a student that runs the server at my school, and we've been having problems with illegal progs on server and games being DLed to server. I was wondering if there's a way to writ a script that will constantly look through the server deleting specified files? Thanks for help in advance, if noone can that's cool too.

Would you want a webscript, such as a PHP script?

any that could do it, I just don't know how to do any scripting really. Iis there one that can auto run and scan like every min or 5 min or something like that, then delete specified progs, like quale.exe, demo.exe, tron.exe, installer.exe, or be able to specify name and size, then delete?? Thanks.