[bsenftner]

Is there any library like PAM in the Windows ecosystem?

[dataflow]

https://docs.microsoft.com/en-us/windows/win32/secauthn/cred...

[detaro]

Not exactly. You can create custom authentication methods and prompts, but it's architected differently. (I think Local Security Authority (LSA) and Credential Providers are the keywords to search for details)

[e12e]

Used to be called GINA. In addition to sibling comments, see: https://docs.microsoft.com/en-us/windows/win32/secauthn/winl...