Adware:Adware (or spyware) is a small program that is designed to show advertisements (in various form and degrees of intrusiveness) on your computer. It often reports personal information back to its owners. As a result your sense of privacy can be violated.
Affiliate.Adware program, also known as Affiliate A, Trojan-Downloader.Win32.Small.dxm, and W32/Downloader.BDAG, is an adware application that displays pop-up/pop-under adverts from various affiliate marketing companies. Affiliate.Adware may be associated with rogue anti-spyware applications such as SpyDawn.
Technical details (How to remove Affiliate.Adware(pop up))