Is the Credential Provider have to use the Windows password?

[trac3me]

Hello there, great product:
I am using CredentialProvider to develop my custom login method，After my research，the Credential Provider seems to require the user's original Windows password. my question is : Is the Credential Provider have to know the original Windows password, and pass it to the operating system for verification, Otherwise the user cannot log in successfully?

[dgoodwin]

I fear you may have googled your way to the wrong repo. This project is not known as Credential Provider and not related to the Windows operating system.