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.
Adware.NetAdware is a nasty adware program that is designed to install itself as a Browser Helper Object and bombard you with hundreds of pop-up advertisements. Adware.NetAdware installs itself without your knowledge and permission. It launches every time you start Internet Explorer and is able to update itself automatically.
Technical details (How to remove Adware.NetAdware(pop up))