Sixteen years ago (1993)

Sixteen years ago, we were busy finishing up Windows NT 3.1.  On NT, I worked on the browser (network neighborhood) and the CIFS network filesystem, they both had their own challenges. 

The NT browser (the computer browser service and bowser.sys (yes the name is NOT a typo)) were my first (and so far only) attempt at building a true peer-to-peer replicated system.  It was surprisingly hard and I learned a great deal about how to build distributed systems while working on it.