I am trying to install languard on ISA. I installed outlook and can do a LDAP lookup to my exchnge 5.5 server. However, when languard tries to make a connection while trying to install it I get the following error in the log file. 10/30/2001 10:32:36 DETECTLDAP::EXCHANGE55 10/30/2001 10:32:36 Error connecting to directorytype=ex55;directoryserver=1992.168.5.222: hr = -2147016646, string = can anyone help Thanks Coby