XP Antivirus 2008, XP Antivirus 2009, and XPAntiVirus are
rogue antivirus programs that, when run, display false results as a tactic to
scare you into purchasing the software. Older versions of XP Antivirus would
create 9 entries in your Windows Registry that impersonate infections on your
machine. In reality, though, these registry entries were harmless and had absolutely
no effect on your computer. Instead, these entries were set so that XP AntiVirus
can find them when scanning your computer and report them as infections. The
newer of versions of the program , such as XP Antivirus 2008 and XP Antivirus
2009, instead just display false results when scanning your computer that state
infections were found. In order to remove these fake infections, though, you
would first need to purchase the software as the trial does not allow you to
remove them. [...]