Vista - Microsoft security tools give devs the warm fuzzies.

Microsoft has released a general-purpose software tool for assessing the security of applications, part of a growing suite of free offerings designed to help third-party developers design safer programs.
Microsoft Minifuzz is a lightweight file fuzzer, a type of tool that detects software bugs by throwing random data at an application. Under Redmond's Secure Development Lifecycle (SDL), all code under development must be extensively fuzzed so buffer overflows and other common flaws can be identified before it goes into production. Plenty of larger developers have adopted the practice, but smaller shops aren't climbing on board yet.