The Mithral Client Server Software Development Kit (part of the Cosm project) allows developers to quickly and easily write large scale client-server applications including "distributed computing" and peer-to-peer types. Examples of what this will allow you to build with this technology are distributed.net, SETI@Home, Napster, Gnutella, etc.
Nets is a flexible and extensible network inventory and asset management system that works on all Unix and Windows platforms, and works with most SQL databases. Its complete GUI allows you to maintain details of your entire network, from network links down to interfaces and routers. It assists in provisioning, costing, reporting, and maintaining network details. It includes a network browser, an extension API, and plugins for IP address map visualisation, reports, schematics.
PHP-Nuke is a Web portal and online community system that includes Web-based administration, surveys, access statistics, user customizable boxes, a themes manager for registered users, friendly administration GUI with graphic topic manager, the ability to edit or delete stories, an option to delete comments, a moderation system, referer tracking, integrated banner ad system, search engine, backend/headlines generation (RSS/RDF format), Web directory like Yahoo, events manager, and support for 33 languages and 9 database servers.
Radiator RADIUS server is flexible, extensible, and authenticates from a huge range of authentication methods, including Wireless, TLS, TTLS, PEAP, SQL, proxy, DBM, files, LDAP, NIS+, password, NT SAM, Emerald, Platypus, Freeside, TACACS+, PAM, external, OPIE, POP3, EAP, MOTP, TOTP, HOTP, Active Directory, Vasco Digipass, SecurID, Yubikey, WiMAX, and many more. It runs on Unix, Linux, Solaris, Windows, MacOS 9, MacOS X, VMS, and more.
The URARFileLib is a small static library that allows you to read files from RAR archives created with RAR and WinRAR. Listing, decompression, and decryption with full RAR 2.0 compatibility is done directly in your application, so there is no need for a DLL or any other external file. It is based on the free unRAR source code by Eugene Roshal, and designed for easy but powerful usage in demos and intros. It is also useful if you want to port your programs since the it is written in pure ANSI C (some parts are optimized in assembly) and supports multiple operating systems.
wxDesigner is a dialog editor and RAD tool for the wxWindows C++ library and its popular Python and Perl bindings. It includes a visual dialog editor, a bitmap editor, a syntax-highlighting source editor, and built-in mechanisms for automatic generation of file skeletons, GUI classes, event handlers, and getter functions. It provides an identical user interface and identical functionality for C++, Perl, and Python, and it can generate output in C++, Python, Perl, and XML.