Ha, I built my first office network with DOS machines, and used Lantastic over 10Base2 wiring.
Used Dataflex as the DB. I thought W4W was a great leap forward at the time.
Oops, I guess my first network was actually smoke signals (pre HIPAA)
I tried to network my CP/M Kaypro computers using Kaynet :^(
Did not really work reliably until DOS and Novell Netware with 386 processors :^)
Greg