I while back I wrote about running multiple versions of IE on the same machine for website testing purposes and the problems I was having with Vista.
The solution I suggested was to run Virtual PC with a copy of XP and IE6.
Last month Virtual PC 2007 came out of beta and so far it seems pretty good.
For all you web developers who have just bought a new computer with Vista pre-installed then Microsoft have released Internet Explorer 6 Application Compatibility VPC Image which is a VirtualPC hard disk image containing a pre-activated Windows XP SP2, IE6 and the IE7 Readiness Toolkit.
I don’t say this often but, well done Microsoft.