I wonder if I can use c# and DirectoryService to manipulate an Exchange 5.5 mailbox account..

I did some test, and I can read the mailbox information (from exchange 55). But I cannot create an new mailbox and I cannot search it..

here are my code,, can anyone help? thanks..
================================================== ====

// here: the Ldappath, I put in is "LDAP://exchangeservername"
// mailboxdirname is a mailbox directory name

// I cannot find anything, even I put into a existing mailbox
// directory name,, don't know what's going on.

public int SearchExchange(string LDAPPath, string mailboxDirectoryName)
        {
            DirectoryEntry searchroot = new DirectoryEntry(LDAPPath);
            DirectorySearcher ds = new DirectorySearcher(searchroot);
            ds.SearchScope = SearchScope.Subtree;
            ds.Filter = "(&(objectClass=person)(cn=" + mailboxDirectoryName + "))";
            SearchResultCollection results = ds.FindAll();
            return results.Count;
// switch (results.Count)
// {
// case 0: //cannot find any account
// return null;
// case 1: //find exactly the entry
// return results[0].GetDirectoryEntry();
// default: // error occured
// throw(new ApplicationException("An error occurred in Exchange. Duplicate accounts found."));
// }
        }


// for saving, I always get either "conflict violation"
// or "properties not found.. wired..
public void Save()
        {
            try
            {
                DirectoryEntry mailboxContainer = new DirectoryEntry("LDAP://exchangeservername/o=exchangeOrg/ou=exchangesite/cn=Recipients","administrator","password");
                DirectoryEntry mailbox = mailboxContainer.Children.Add("cn=george 1234","organizationalPerson");
                mailbox.Properties["mailPreferenceOption"].Value = "0";
                mailbox.Properties["rdn"].Value = "huang123rdn";
                //mailbox.Properties["givenName"].Value = "george";
                mailbox.Properties["sn"].Value = "huang";
                mailbox.Properties["uid"].Value = "huang1234";
                //mailbox.Properties["mail"].Value = "[email protected]";
                //mailbox.Properties["MAPI-Recipient"].Value = (bool)true;
                mailbox.Properties["rfc822Mailbox"].Value = "[email protected]";


                // ' Commit the property cache to the directory service
                mailbox.CommitChanges();
            }
            catch(Exception ex)
            {
                throw ex;
            }

I am able to search the Exchange 55 using c# now...

for my previous mail,, if I thought cn is the directory name, but actually cn in exchange is "display name" and rdn is directory name.

so just change the filter, and it works:

ds.Filter = "(&(objectClass=organizationalPerson)(uid=" + mailboxAliasName + "))";

Still trying to figure out how to create a new mailbox.

George