This is about when you slammed Linux for its open source code enabling the Chinese to have American technology for free (remember "for free," it's important). Yet BSD, with its even more permissive license, gets a pass from you.
And Microsoft did "lift" BSD code. Here's the story: Early in NT, Microsoft was still using Netbeui, but they wanted to add TCP/IP. Unfortunately, the user mode API (Netbios) couldn't easily be changed to handle TCP/IP. So they bought a TCP/IP stack from Spider Systems (that included some utility programs) and wrote the winsock API for it.
Since Spider's stack depended on STREAMS, which Microsoft didn't need, this was considered a temporary measure until Microsoft could write their own stack, which they did in time for shipping with NT 3.5.
And Spider's stack was based on the BSD stack. Simple proof (which you have seen before) is in the supporting programs that Microsoft never bothered to replace from scratch. Just look for "Copyright (c) 1983 The Regents of the University of California" buried within c:\Windows\System32\ftp.exe, rcp.exe and rsh.exe. Yes, the copyright date is the same for all of them.
Now normally this would be completely legal due to the BSD license if Spider and Microsoft kept the credits in the stack as they did in those programs. There's no reason to think they didn't.
The only real value this trivia question has is that when Microsoft goes on an anti-OSS campaign you can say "But you yourself use open source and benefit from it."
ANOTHER LIE
they bought a TCP/IP stack from Spider Systems
I know, but you just knowingly and puposefully lied claiming they "lifted it". More proof you're willing to lie endlessly even when facts are present that expose them, as if there weren't enough already LOL. Keep going, you've already admitted you lie quote "for fun", while I have my fun exposing liars for being liars.