Good luck with your exam.

For other ideas you can take a look at our script searchfiles.kix
which you can find on our site http://home.wanadoo.nl/scripting .
You can specify which directories or drives should be searched for
specified files.
The part :show_file_info can easily be changed to a delete file
operation. On the board you will find modified scripts of it.
When you need more help let it know us.
greetings.

btw: for speed is dir /B /S a good one.