The VSSWebXtra project is a web interface for version control database named "Microsoft Visual SourceSafe" or VSS. A DotNetNuke (DNN) module is available and provides access to your VSS in your portal.
Paligo is an end-to-end Component Content Management System (CCMS) solution for technical documentation, policies and procedures, knowledge management, and more.
hostingstar.com.au's open source software.
To be used primarily for dotnetnuke modules, a cross platform backup system, .net (dotnet) user controls, 3d plugins and many other bits and pieces.