Application that replaces the default windows authentication system

I want to write an application, which will replace the default authe开发者_C百科ntication system in windows ( username and password). The new system ask for one or more extra field along with username, password. And this data will be sent to a server like system connected in network. And if that system ( stores all the authentication data ) validates the info received, it will send "yes".

Then only the client side application pass the authentication and allow to login. Can you help in doing this using VC++. Thanks in advance for your valuable time.

The Novell NetWare Client for Windows XP/2000 provides a single, synchronized login to the Windows XP or Windows 2000 desktop and the NetWare network; users have to enter their names and passwords only once to access all the resources they are authorized to use.

So, it's possible to supplement the Windows login process. Probably not very easy, but possible.

It would probably be cheaper to purchase Novell NetWare.