An advanced and popular download manager for Firefox
A DownThemAll! extension allowing to grab resources behind container pages
A better Greasemonkey!
(I'm a contributor)
Apache2/2.2 Module to serve script backend specified files efficiently
Mozilla extension that aims to revive MinimizeToTray
A batch extraction tool for RAR/ZIP/7Zip archives (incl. password list support)
A simple, zero-config DLNA media server, that you can just fire up and be done with it.
Advanced GetOpt (command line parser) implementation for .Net in C#
A picaview replacement for Windows 32/64
XP-Install (xpi) code signing
Windows/NTFS free space defragmentation
A small C++ wrapper library around SQLite
An (old) tool to scan collections of images for near duplicates.
Listing only some of the interesting stuff. More projects might be available on GitHub.