Re: How about
Guess your friend is never going to use Linux? Or countless other pieces of OSS that MSFT has contributed to?
It's all fine and good to fight the good fight, but not when the fight ended centuries ago.
Let me give you a hint - Linux and OSS won.
"If Microsoft ever does applications for Linux it means I've won." - Linus Torvalds, 1998 - http://www.cnn.com/TECH/computing/9810/01/whylinux.idg/
Not moving on is just childish.