Okay, usually people who write adware code make sure they try to sell you something, right?

Now this one adware apparently that is this address:
Code:
http://www.adnet-plus.com/ads.php?i=16596498&k=e9e71f84
Is a poorly written/noobish attempt at adware. It pops up labeled "Advertisment", comepletely blank, then disapears. REALLY ANNOYING!

Sweeps don't help at all. Blocking the address doesn't either. Help!