There is a very popular and important question about Windows Packet Filter: “Can I handle Gigabit traffic in WinpkFilter user-mode application without noticeable performance degradation?”. I was asked rather frequently and usually, my answer starts with “that depends…” followed up by various performance related considerations and ends with a sentence “if you need maximum possible performance then consider… Read More »
If you’ve never written a driver for Windows before, your first question is likely to be: Where do I start? While building drivers for the modern Windows operating systems is widely covered by numerous tutorials on the Internet, it might be challenging to find the information and necessary tools for the legacy operating systems. This tutorial covers all steps… Read More »
This is a short reverse engineering review of one useful remote administration utility, originally authored by Mark Russinovich (you can download it from Microsoft web-site here). The original version of this review was published on this site in 2004, but since the utility is still very popular and users are interested about its internal design, I decided to… Read More »
The original version of this article was published on this site over 14 years ago and was named “Firewall for Windows” (firewalls were popular at that time, however the same kind of drivers can be used for the wide variety of networking applications). Lots of time has passed so far, and described old Windows operating systems are mostly… Read More »