Given below are the links from where you can download stand alone installation for Vista Windows Server 2008 Service Pack 2 :
1) http://msmvps.com/blogs/donna/archive/2009/05/26/vista-service-pack-2-standalone-is-available.aspx
2) http://www.blogsdna.com/3427/direct-download-links-for-windows-vista-service-pack-2-standalone-installer.htm
3) http://www.microsoft.com/downloads/details.aspx?FamilyID=a4dd31d5-f907-4406-9012-a5c3199ea2b3&displaylang=en
2) http://www.blogsdna.com/3427/direct-download-links-for-windows-vista-service-pack-2-standalone-installer.htm
3) http://www.microsoft.com/downloads/details.aspx?FamilyID=a4dd31d5-f907-4406-9012-a5c3199ea2b3&displaylang=en
