Our Windows admins asked me if I could write them a little script to search for all files over a certain age, and delete them. With File::Find, it's pretty much a no-brainer, and I even added logging and a search-and-report function too.
I know our NT/2K admins are good, well trained people, but it does amaze me that windows doesn't ship with this kind of functionality built it. I know you can do a search and delete, but it's hard to automate with at or scheduler, and if you have lots of machines then it becomes an administration nightmare.
In the end they could have obtained one of many free/share ware windows apps that plugs the gap, but Perl seemed an okay solution (even if it's big), and as it's on the NT Resource Kit it is therefore considered approved, plus the script is easy to configure and change if they want.
What is it they say in France? - Linux? Il y a moins bien, mais c'est plus cher! - even MS may agree... ;-)
