(This is a guest post from Tenox)
Just stumbled across this: someone has forked Windows NT 4.0 and created an open source version of it. But wait, forked what? Windows source code doesn’t live on Github. Is it ReactOS? No! Upon some digging, it was apparently born from the leaked source code of NT4.0, some W2K bits and 2003 WRK.
Enter NT version 4.5:
More screenshots here: http://www.opennt.net/projects/opennt/wiki/Screenshots
The main project site: http://www.opennt.net/
Looking at activity the project seems to be alive and well. There is some background information and discussion going on BetaArchive for those interested.
I wonder what Microsoft has to say about this 🙂
EDIT* for those from the future, you may be interested in this followup – OpenNT 4.5 revisited, where it’s compiled and run!