Spyaxe is a anti-spyware program that is known to issue fake warnings on your computer in order to manipulate you into buying its full commercial version. Warnings in your task bar may appear to be from Microsoft Security Center stating you are infected with spyware. These warnings are fake and are a goad to have you buy the commercial version of this software.
Foistware is a term used to describe software downloaded to a computer without the owner's knowledge, which puts hidden components on a system, and attempts to bait the unsuspecting into purchasing another software remedy.