Hiya,
We use Virtual Tape Drive (
www.vtdcanada.com) to do what you're talking about. It works with all versions of Windows including Windows Server and can also backup network drives.
It happens automatically every day, and each day I receive an email verifying that my backup was successful.
Plus, they're a Canadian company. You can also find them at
www.virtualtapedrive.ca.
Good luck,
Indie.