I am using Microsoft’s Virtual PC quite heavily in all my development projects since it has lots of advantages in my day to day work … especially when working in multi-project environments. It is just until this week that I learned a very important lesson in this area. I can’t imagine how difficult and inefficient my setup has been. I found this very interesting blog entry “HOWTO: Use Virtual PC’s Differencing Disks to your Advantage” by Andrew Connell that makes life so much easier and in additon to that saves tons of space on my harddrive.