How to verify if a user has been authenticated

Question

Hi there,

I want to know if a unique token or some identifier is issued upon successful logon

to a Windows machine via Active Directory.

If yes, then is it possible to retrieve this token and pass it on to some

application, and that applicaiton could then call Active Directory to verify if the

token was genuine?

Does AD provide a service to verify the token, or any alternatives?



Thanks.