Lots of old friends in this video. Unfortunately I only worked on BackOffice 2000, the last edition of BackOffice Server (excluding Essential Business Server of course). Back Office Server 4.5 released in January 12, 1999, and I joined Microsoft in January, 2000 (as an Intern).
Enjoy the blast from the past!
This video talks about what it was like to build BackOffice 4.5, the BVTs, daily meetings, all that seemed to stay the same.