Ad Rotator Help!!

Ok say i have a program it is going to be free to use so i want to be able to display ads in it like AOL does for dell(down at the bottom of the screen. I want it to automatically rotate throught about 10 ads every 15 minutes or so. I know there is an ad rotator thing in vb.net but i can not use it with my form, for some reason it only works with web forms and mine is a windows form so i need something other than that, i think it can be done with XML but i am not the best in that area so if someone could help me out or give me a site with examples and help that would be good to Thanks!

P.S. I am coding in vb.net but i know vb6 and some C++

bump:D