Note that many websites have their own advertising, unrelated to adware.
Adware is any software application in which advertising is displayed while the program is running. The authors of these applications include additional code that delivers the ads, which can be viewed through pop-up windows or through a bar that appears on a computer screen and sometimes through text links or in integrated search results. Adware may or may not track personal information. It may also gather information anonymously or in aggregate only. Users should check the EULA and Privacy policy to ensure if the adware on their machines conforms to their standards.
Comment:
Possibly related to Context Plus and Apropos Media.
Appears to search through its own hidden cached web pages for keywords typed in Internet Explorer and search boxes. Displays adds based on these keywords.
Some code analysis suggests that it tries to bypass the windows host file by using its own DNS file to resolve IP addresses for displaying adds.
Manual
removal:
Start computer in safemode. http://www.xblock.com/tt/index.php?x=&mod_id=2&id=132
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