Jean-Marc published a nice post on how to enable a DSL to MEF extensios. There's a followup post for those who migrated from VS2005 and missing the magical InternalsVisibleTo attribute in their AssemblyInfo.cs. For more info on DSL tools see this code gallery page: http://code.msdn.microsoft.com/vsvmsdk Eyal
One of the new features for DSL in VS2010 is DSL libraries, in this post I will explain how to use the new feature. Prerequisites : VS SDK 2010 Beta2 and higher + DSL SDK 2010 Beta2 and higher. DslLibrary is a DSL that is used as a library – you can extended it or just use it with you DslLibrary/DSL. In order to start creating DslLibraries: 1. Start VS and then File->New->Project 2. Find the Domain-Specific Language Designer (under Other Project Type->Extensibility...
According to Pablo Galiano VSSDK Assist December 2007 CTP is out and available for download. The features are (from here ): Compatible with Visual Studio 2008 RTM and Visual Studio 2008 SDK 1.0 Support for CSharp and Vbasic code generation VS package Setup project added (wix based) Flavor project creation Custom project creation BitmapStrip creation Extenders creation Solution extenders Project extenders Download page