1) Find the link of the Gif. If you can't find it, upload the downloaded gif to photo bucket or something like that
2) Right click your desktop and click properties
3) Click The Desktop Tab
4) Customize Desktop
5) Click The Web Tab
7) Type/Paste the link
9) Wait for it to synchronize!
as sure as this probably works on vista or xp, it doesnt work on win7.i open PERSONALIZE, the only desktop option i have is desktop background, and in that theres no web tab so no its not happening. thankyou for your reply anyways.