"Win2000 onwards were ok , but NT 3.11 and 3.5* were lame dogs and should never have been released. "
A pedant writes - you seem to be mixing up your history of NT and WFW. And to be honest I'm disappointed in the other readers that I had to emerge from lurking just to point this out. Clearly they are very grief stricken.
NT 3.1, 3.5, 3.51, 4. We got all of them to work pretty much ok.
I think the last one we even tested on a Multia, which was intended to be Digital's Alpha workstation to replace all the PC desktops, but with deployment tools and the like. I think application compatibility and the cost of the machines gave them a big hurdle to overcome.