Impersonation and DirectoryServices ops in .NET

Impersonation and DirectoryServices ops in .NET

Post by San » Wed, 10 Apr 2002 00:46:40

Here is what I am doing:

1.  I have a application which uses forms authentication
2.  All my users are in active directory [userId, password entered in the
login form should match userId and password in AD].
3.  I use windows logonUser call to authenticate the user.
4.  After authenticating the user, I would like to do some active directory
5.  Since my application is running under ASPNET account, I have
couple of choices to authenticate this user to do AD operations.
      Choice (1):  Impersonate as the user in AD and do AD operation.
      Choice (2):  Pass in userId, password credentials to DirectoryEntry
constructor every time.
I find that the choice (2) works, but choice (1) doesn't.  I am able to
impersonate successfully using token from LogonUser, but any calls
to add objects to AD gives me the following exception:

Unhandled Exception: System.Runtime.InteropServices.COMException
(0x80005000):Unknown error (0x80005000).

Can someone tell me what I am doing wrong?




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