Let's face it, web developers. Even if you're the most devoted fan of Firefox, Opera, or Safari, the 800-pound gorilla in the room is still Internet Explorer. Like IE or hate it, your pages had better work properly with it. Unfortunately, you can only have one version of IE running on a test PC at a time...or can you?
Add Virtual PC 2007 SP1 to your Windows XP, Windows Vista or Windows Server 2003 or 2008 box, and install your choice of Windows XP SP3+IE6, Windows XP SP3+IE7, Windows XP+IE8 Beta 2, or Windows Vista+IE7 in VHD format. Now, it's easy to find out which pages make a particular flavor of IE gag, and you can switch between IE versions running in different VMs with the click of a mouse. For more Virtual PC downloads, including release notes, click here.
These disk images work until April 2009, so you have plenty of time to work out page glitches. Not developing websites? No problem! Try them anyway.