If you purchase a software license from PC Tools, be advised that it will be difficult or impossible for you to cancel the $29.95 automatic renewal. The company's telephone number does not work, and email to [email protected] bounces back. The number of the company's San Francisco office is unlisted. I am unable to access my account online because the system claims not to recognize my email address, even though I just received an email from them. I just filed a complaint with the Better Business Bureau, but it will probably go nowhere, since the company is officially located in Ireland.
Incidentally, it's easy to contact the company in order to update your credit card information.