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Editorial Team
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Asked: 2026-05-19T00:39:28+00:00

I am using the following code to fetch list of all users in the

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I am using the following code to fetch list of all users in the given domain. 

DirectoryEntry dirEntry = new DirectoryEntry( "LDAP://domainname", userName, password );
System.DirectoryServices.DirectorySearcher dirSearcher = new System.DirectoryServices.DirectorySearcher( dirEntry );

dirSearcher.Filter = "(&(objectClass=user)(objectCategory=person))";
foreach ( SearchResult resEnt in dirSearcher.FindAll( ) )
{
//Access searchResult
}

But results returned are partial and do not reflect all the registered users in the domain. Is there anything I am missing out here?

Thanks in advance,
Bharath.

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1 Answer

  1. Editorial Team

    Silly question for you, how many are returned? Any chance it is right around 1000 or 2000?

    AD has a default limit on how many search results are returned in one simple query. You can page your results, or change the limit, but if you are getting right around 1000 or 2000 that would be a dead giveaway.

    In that case, Uwe’s answer to test with an external LDAP browser would show the same results. (I personally use LBE or ApacheDS. LBE is 600K and lightweight).

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