Recently, while working on a new module installer I needed to be able to roll back my test environment as I went through the various iterations.  This was not a trivial installation and therefore I knew that I would likely have to take several stabs at this before I got it right.

Normally, I would turn to either Virtual PC or VMWare in this case.  Unfortunately Vista and Virtual PC were not cooperating today and it was taking forever just to do simple file copies between the VPC and host machine.  Installing the module which clocked in at just over 4Mb took forever.  All of my time savings was being eaten up by a finicky Vista install.  Since I re-paved my machine a few months back I did not currently have a VMWare installation running on this machine so that was not really an option....