Login using NT login details from web form problems

[DavidADEW]

I need a ASP.NET C# web page that lets a user enter their NT user name
and password and passes to NT to see if they are a valid NT login.

I am aware of the System.DirectoryServices.DirectoryEntry classes, and
tried to use these, but they are not installed on the web server at
present - I get a

>CS0234: The type or namespace name 'DirectoryServices' does not exist in the class or namespace 'System' (are you missing an assembly reference?)

error

Is there another way of logging in via NT, or how does
System.DirectoryServices.DirectoryEntry get installed on the web
server?

If I have posted this in the wrong group, please do let me know which
group I should post in.

[Vadym Stetsyak]

Hello, DavidADEW!

You can use LogonUser(...) to check if user can login
Have a look at ( http://www.thecodeproject.com/csharp...rsonation1.asp )

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com