custom hooks in to service for windows authentication...

I have to make a db connection before the operation called. I am using message credential to pass UserName,password and written a custom validator, so when a request comes in, it uses this custom validator to make the connection and authehticate the user. This works fine, now I have to make same arrengement for windows authentication and i was wondering if there is any hook in widows authentication mode to call custom login code that would be executed before the real operation is being called....

I am looking for something that can be configured from .config file

thanks..

[599 byte] By [Hiten] at [2008-1-4]