What's inside Windows 7's Vault?

Windows experts Paul Thurrott and Rafael Rivera have been peeling back the covers on Windows 7. Underneath the surface, they've discovered a few features that Microsoft hasn't detailed and disclosed, including something called the Windows Vault.

I asked Microsoft about the Vault. After some digging, a spokesperson returned with this explanation:

"Windows 7 includes a feature called 'credential manager.' This is similar to technology in past versions of Windows in that it stores your frequently used passwords so you can easily access and manage; however, in Windows 7 we've added the ability to back up or restore this information.  The default storage vault for the credential manager information is the 'Windows Vault.'"

Thurrott and Rivera said they have two other similar Windows 7 mystery features to unveil. In the interim, any other testers have specific Windows 7 features about which you've been unable to find more information?