Microsoft has got its strong points, but in terms of web development, we're known for pretty much staying away from it. Microsoft servers have got a bad reputation for instability, insecurity, and vulnerability to viruses and attacks.
But what about the desktop?
Here's a story of how Ernie Ball, guitar-string manufacturer, totally ditched Microsoft in the office, and went to open source...
"I know I saved $80,000 right away by going to open source, and each time something like (Windows) XP comes along, I save even more money because I don't have to buy new equipment to run the software"
Rockin' on without Microsoft