I have a dedicated Windows server client, who leave his anonymous ftp on. This results in a lot of strange folders with mp3s etc, I manage to delete the files, but the strange folders I cant delete even using Windows Commander. Anyway to delete the strange folders?

you'll have to use posix nomenclature to delete them

for example:

rmdir \\.\c:\inetpub\ftproot\COM1

if that doesnt work, you'll have to find out the real filename by doing

dir /x

run that rmdir command or rd /s on all of the 8 character file names (the ones that end with ~1, etc)