My personal experience is that MS has been solid since Windows 2000. I have limited experience with the NT4 products but I remember those being just fine as we

My personal experience is that MS has been solid since Windows 2000. I have limited experience with the NT4 products but I remember those being just fine as well (i maintained two NT4 servers for my employer and used to host images for fark photoshop contests on one- shh). Exchange has been SUPER solid. Its only 2010/2013 that we're seeing so many issues with what should be a trivial update process. I think there's a real drop in quality lately. Heck, in the XP days we never bothered to test security updates. They all came in same day via WSUS. Nowadays? No way.