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Old June 23rd, 2004, 01:43 PM
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Default Active Directory (ADSI) C# Group Info LDAP Problem

I have written a Web Based Login Module in C# that authenticates against my local PDC. As far as the authentication goes, it works great. The problem comes when I try to get all the groups the user logging in belongs to. And what’s even WEIRDER is that it works fine when I run it from the development box (which is where the program resides and runs) but when I run (access it) it from another computer it will NOT get the group membership! Here’s the code I use (Keep in mind the strUser has already been authenticated against the AD):
string getGroups (string strUser){
        DirectoryEntry obEntry = new DirectoryEntry(

        DirectorySearcher srch = new DirectorySearcher(obEntry, 
          "(sAMAccountName=" + strUser + ")");

        SearchResult res = srch.FindOne();

        if (null != res){
          DirectoryEntry obUser = new DirectoryEntry(res.Path);
           object obGroups = obUser.Invoke("Groups");
          foreach (object ob in (IEnumerable)obGroups){
            DirectoryEntry obGpEntry = new DirectoryEntry(ob);

      return groupNames.ToString();
In IIS I have setup a user that has the ability to read the AD. (Again this works from the local machine, even if in the local machine I change from http://localhost to http://nameofbox it still works)

Any Help is appreciated!

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