VB.NET中的查找使LDAP服务器崩溃

My DBAs have informed me that one of my applications is really bogging down one of our LDAP servers. I've looked at the code several times, but I can't see any way to limit the amount of times I have to hit LDAP. So now I've decided to look at the way that I am actually obtaining the data to see if there is a better way. I did not develop the actual data model I'm using, and I'm not certain what the System.DirectoryServices.Protocols library is all about. My DBAs have informed me that one of my applica