Virtual PC 2007, downloadable now, supports Vista as host and guest
About three weeks after launching Windows Vista, Microsoft is on a roll with new and updated versions of its own products that are compatible with Windows Vista. Microsoft made available on February 19 not only a Vista-compatible version of SQL Server 2005, but also the final version of Microsoft's Virtual PC 2007 product, which supports Windows Vista as both a host and guest operating system (OS).