What's the best way to keep Windows programs up to date?

Secunia's recommended Personal Software Inspector is being discontinued and Laurence is looking for a replacement

Now that Flexera has announced end-of-life on Secunia Personal Software Inspector, do you have any recommendations for a replacement? Laurence

In 1999, David Lee Smith - who was later jailed - named his PC virus after a stripper called Melissa, and it swept the world, forcing some large companies to shut down their email gateways. That and some later malware successes forced Microsoft to spend two years rewriting Windows XP, and Windows XP Service Pack 2 was finally completed in 2004.