Isocor Corp.'s <A HREF="http://www.techweb.com/se/directlink.cgi?DAT19990107S0019">Metaconnect</A> directory software ties directory data together and delivers a unified naming convention for tracking down users. It costs $5 per user for a network consisting of a database and Exchange from Microsoft. With multiple directories and databases, the price tag per user goes up to $25.