Windows installer development tool
NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
Free implementation of the SMTP protocol for C++
Angora is a simple and powerful PHP/MySQL guestbook
OpenHTTPD is an implementation of HTTP/1.1 with focus on extreme reliability and speed as proxy for http based web applications. It uses dynamic caching for and user defined cache manipulation to boost even complex web applications.
advanced disk information utility
'di' is a disk information utility, displaying everything (and more) that your 'df' command does. It features the ability to display your disk usage in whatever format you prefer. 'di' also checks the user and group quotas, so that the user sees the space available for their use, not the system wide disk space. 'di' is designed to be portable across many platforms and is great for heterogenous networks.