This Microsoft Support Webcast will discuss Exmerge and its uses in both Exchange 2000 Server and Exchange Server 5.5 environments. Areas of discussion will include using the program to move mailboxes, clean up viruses, search the Information Store (IS), perform disaster recovery, and perform migration.

http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com/servicedesks/webcasts/wc040202/wcblurb040202.asp