Needed! script to delete files xDays old

I have a program that writes temp files out to a folder but doesn’t delete them. I need something that can run automaticly that will delete any file older than 3 days (because it still may use temp files up to 3 days old). I know you can use a VB Script to do this but I don’t know the first thing about that so if you tell me to use that then you better give me a good example. Or is there a utillity under the windows 2000 Resoruce kit that I could use. Anything would be great. Thanks