Image expand/contract effect

I'm something of a novice with visual basic, but I was wondering if it's possible to expand an image when the mouse hovers over it, and then have the image contract with the mouse leaves. I know I can resize the image on mouse hover, but that's not what I'm looking for. I'd like the image to gradually expand, then gradually contract. Can someone let me know if this is possible in visual basic?

use the same events, have the routine resize the image gradually, say 10% at a time where "time" is up to you.

Or Silverlight, or use BLEND and XML...