'''Shared Source Common Language Infrastructure''' (previoslypreviously codenamed '''Rotor''') is [[Microsoft]]'s [[shared source]] reference implementation of the Common Language Infrastructure ([[Common Language Infrastructure|CLI]]), the core of [[Microsoft .NET|.NET]]. Shared source is not real [[open source]] (e.g. it's not suitable for commercial use) but it makes it possible for [[programmer]]s to view the source of many .NET libraries, as well as for [[hacker]]s to create and use modified CLI versions. Microsoft expects Rotor to be of real value to students learning cross-platform compiler technologies, class system design guidelines, and so on, being the real-world illustration to their lectures.
Rotor comes pre-configured to run on [[Microsoft Windows|Windows]], [[FreeBSD]] (version 4.7 or newer), and [[Mac OS X]] 10.2. However the only thing that needs to be customized to port Rotor to a different platform is a thin PAL (platform abstraction layer), so basically Rotor is portable to any platform.
