I have tried Adaware and Norton. Look for it in the Registry This thing is a frickin booger! Rocket River
Here is a manual and automatic way of removing it. http://www.pcontech.com/spyware/remove/Adware.W32.ExpDwnldr-remove.htm Has all the Dlls to remove and the registry entries to get rid of.
Tried it twice. . . once in Safe Mode. not finding any of these files in the Registry at all Rocket River