System.DirectoryServices.AccountManagement PageSize limit 1000

[EDN Admin]

Im using PrincipalContext, UserPrincipal and PrincipalSearcher to get the total number of objects in a particular OU. I know total is somewhere around 9,000. But what I get is 1,000. Ive tried modifying the underlying searcher to set
PageSize and SizeLimit, but same result. Here is the code:
<pre lang="x-cpp public int TotalEnabledUsers
{
get
{
UserPrincipal user_principal = new UserPrincipal(principal_context);
user_principal.Enabled = true;

PrincipalSearcher principal_searcher = new PrincipalSearcher(user_principal);
principal_searcher.QueryFilter = user_principal;

(principal_searcher.GetUnderlyingSearcher() as DirectorySearcher).PageSize = max_page_size;
(principal_searcher.GetUnderlyingSearcher() as DirectorySearcher).SizeLimit = max_result_size;

int count = principal_searcher.FindAll().Count();

Console.WriteLine("Count:" + count);

return count;
}
}

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