Comments by cesare.cogliandro@teletu.it (Top 1 by date)

I tried to use that function, but the result is Always the same: if the user cannot login on the PC requesting the validation, the answer is Always false. An example about the situation: user "A" logged on a PC, launch a software which requires autentication and the autentication is obtained from active directory.
If another user "B" needs to perform some tasks on this application on this machine (but cannot make login from that PC) the application (not the PC) should be able to grant access with his credentials to the tasks permitted to that user.
We have two levels of autentication: the first on the PC, the second on my software and this secon autentications should be possible regardless the user could or not lo on to the PC.
In brief, I ned a function that asks to active directory if a couple of credentials (username and password, obviously) are valid regardless ther PC context from which the request starts.
Thanks in advance.