From Matrix Platform
The latest set of binaries compiled in Release mode (Any CPU) under Microsoft Visual Studio 2008 SP1.
Full source code of all the assemblies of the platform, along with a Microsoft Visual Studio 2008 SP1 solution. If you need to use an earlier version of Microsoft Visual Studio (for ex. 2005), you may need to recreate the solution file only, since the project files are compatible with older versions.
Working Copy Source Code SVN
The latest Matrix Platform source code is publicly available for download trough the Google Code service here. To access it you will need to install an SVN client (for ex. Tortoise SVN) and do a checkout with the following parameters (you can find instructions on this page):
Non-members may check out a read-only working copy anonymously over HTTP.
svn checkout http://matrixplatform.googlecode.com/svn/trunk/ matrixplatform-read-only