This is the software publisher's description.

Spyware Doctor provides three-way spyware protection for your PC through real-time threat blocking, advanced system scanning and immunization against known browser infections.

Anti-virus software and firewalls do not fully protect your system against the majority of spyware and privacy threats.

When you consider the amount of valuable and confidential personal information stored on your PC, including credit card and banking details, private e-mails and documents, shopping and browsing habits, the risks of having software intruders snooping on your computer activity are obvious.

The latest v4.0 contains a number of major enhancements including Instant Messenger guard protection, an enhanced 'ignore list', improvements to the scanning tool and the facility to create a system restore point.