i installed spyware blaster but it wont let me scan?
To do this, go into Windows Task Manager in the "Processes" tab, and find out which .exe running is Adsheriff and end that .exe (becareful when doing this, if you shutdown the wrong .exe you can crash windows.
I suggest using www.liutilities.com to search which .exe needs to be shutdown.
Once you have done this, run the anti-spyware programs and it should delete the program completely.
Go to the bad programs home website and search around.
Many countries now have a law that the removal program has to be available for free and able to be downloaded from their site.
I have gotten rid of some of the worst for people that way.