Huh, yes WM has one and it blows the pants off any you know of.
It backs up everything, anywhere you like, whenever you like.
Even if you don't feel like doing it regularly yourself, it can be scheduled to do it for you.
Sprite Backup:
http://www.spritesoftware.com/store/...roducts_id=191
IMHO get the entire pack, which is $40...... but this one should do.