PrizeSurfer is a piece of adware that users often unwittingly install on their computers.  It monitors your activity at certain sites, with the excuse that some shoppers will win prizes when they shop.

Adware can slow down processor speed, as well as browser speed (especially with Internet Explorer).  While some adware programs can be removed by deleting the associated program files and registry info, others are more insidious and may hide themselves with random file names or unexpected directories.

SpyZooka is one anti-spyware program that can remove threats and prevent future infection.  It also comes with a money-back guarantee: If all threats are not removed from your computer within twenty-four hours, you will receive a full refund!

Relative file contents:

%programfilesdir%\RCPrograms\Prizesurfer_setup.exe
Prizesurfer.exe
Passkey.dll

Registry Keys:
%windir%/Downloaded Program Files/PassKey.dll
PassKey.Validate
PassKey.Validate.1

Other Registry Values:
PrizeSurfer
%windir%\Downloaded Program Files\passKey.dll

AKA:
Passkey