It activates the same as win 7. Install a Vista certificate that matched the slic table in your bios and a slp key that matches the version of windows. You can do this manually or use Daz's loader.
i mean i want to activate Win Vista, can someone provide a working keygen or patch. That would be great. Actually i can only find the oembios file for XP, and slic table is nt present can i create it manually. Just for Vista i think Win7 would be complicated.
Try it and find out. If it gives you the option to install the loader then you're good to go By the way you'll probably need to run the loader on Vista and then do the same thing on Server 2008.