I have a problem with a search on a exchange 2003.

I try all the test in the article of infinitec site, but i can't
understand why i cannot get all the email address of my forest.

we have a forest with a root domain  A and 5 child domain (b,c,d,e,f).

I Create an entry point on the A domain and try to search all the child
domain for a object of a filter like

(&(mailNickname=*)(showInAddressBook=
CN=Default Global Address List,CN=All Global Address Lists,CN=Address
Lists Container,CN=MYORG,CN=Microsoft
Exchange,CN=Services,CN=Configuration,DC=domain,DC=com
))

I can't get any object.

If i try to retry all users email(and group and contact...) from
exchange system manager, point on Default Global Address List with the
preview button i have about 2330 entry ...composed of
user,groups,contact.

The query in the default global address list is the same specified in
Henning Krause article....but if i create a code like this:

//MYEXCHANGE server name
string entry_string="LDAP://myserver.mydomain.com";
DirectoryEntry entry = new DirectoryEntry(entry_string);
DirectorySearcher searcher = new DirectorySearcher(entry);
searcher.Filter="(&(mailnickname=*)(showinaddressbook=CN=Default Global
Address     List,CN=All Global Address Lists,CN=Address Lists
Container,CN=MYORG,CN=Microsoft
Exchange,CN=Services,CN=Configuration,DC=domain,DC=com))";
searcher.SearchScope=SearchScope.Subtree;
searcher.ReferralChasing=ReferralChasingOption.All;
foreach(SearchResult result in searcher.FindAll())
{
...bla.bla...
}
searcher.Dispose();

I retrieve nothing.

I can't understand where the preview button of the exchange manager in
the default global address list create the correct query.

I can retrieve only the root domain address book, and if i change a
query also other two domain(but is very slow), but for the other three
domain i can't retrieve any address.

I would create a "resolve email address" button like an outlook client
application.

Can anyone halp me?