The Windows world has Secunia's Personal Software Inspector (PSI). http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scannin

The Windows world has Secunia's Personal Software Inspector (PSI). http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/personal/ I can't really speak to it, personally. I tried it on one machine, some time ago, but I was leery of using it more widely including but not only for the reason of having yet one more thing scanning and bogging down the system drive. The security-oriented press seemed, on balance, favorable towards the product.