System Requirements:

* Requirements vary for different combinations of
  components within Visual Studio 2008 Professional
  Editions. To install Visual Studio 2008 Professional
  Edition, you need:
* Computer with a 1.6 GHz or faster processor
* Visual Studio 2008 can be installed on the following
  operating systems:
* --Windows Vista (x86 & x64)--all editions except
  Starter Edition
* --Windows XP (x86 & x64) with Service Pack 2 or
  later--all editions except Starter Edition
* --Windows Server 2003 (x86 & x64) with Service Pack 1
 or later (all editions)
* --Windows Server 2003 R2 (x86 and x64) or later (all
  editions)
* 384 MB of RAM or more (768 MB of RAM or more for
  Windows Vista)
* 2.2 GB of available hard-disk space
* 5400 RPM hard drive
    * 1024 x 768 or higher-resolution display
    * DVD-ROM Drive