PktFilter is a software that can configure the IP filtering device driver found in Windows 2000/XP/Server 2003, with filtering rules following a syntax similar to IP Filter
a 32-bit assembler level analysing debugger for Microsoft® Windows®. Emphasis on binary code analysis makes it particularly useful in cases where source is unavailable.
special access codes prepared by the US National Security Agency have been secretly built into Windows (logical and expected this is why China and other states stay away of windows, even some tastes of Linux must have been compromised)
automatically hardens software applications against a wide range of bugs. These bugs — known as memory errors — often end up as serious security vulnerabilities, cause crashes, or lead to unpredictable behavior.