I want to implement an internal Instant messaging system for our company of about 60 users.
I don't really want to invest in purchasing anything at this stage and would like to try and utilize what we already have.
So we are using Server 2003 for our domain controller with AD, as well as Exchange Server 2003.
One of the first things that came into my mind was Windows Messenger 5.0, but how can this be implemented with Exchange 2003? I did some reading and found that it only works for Exchange 200. And that for 2003 you need to use LCS 2005.