You can download a 15 day trial from Sunbelt Software. After installation, the computer was very slow. I found that it is incompatible with PC Tools Spyware Doctor 6. Due to the slow response, the only way to uninstall Spyware Doctor 6 is booting into safe mode.
The update is automatic and it only passed Eicar tests for eicar.com but all Spycar tests on a Windows Vista SP1 computer.
It also bundles with Secure File Eraser, History Cleaner and PC Explorer.