In case you were wondering, here's the list of supported operating systems you will be able to install Visual Studio 2005 on:

Microsoft® Windows®° 2000 with SP4

Microsoft® Windows®°XP with SP2

Microsoft® Windows®°XP°Professional°x64°Edition°(WOW°only)

Microsoft® Windows°Server™°2003 with SP1

Microsoft® Windows°Server™°2003,°x64°Editions°(WOW°only)

Microsoft® Windows°Server™°2003°R2

Microsoft® Windows°Server™°2003°R2,°x64°Editions°(WOW°only)

Microsoft® Windows°Vista™