Tranne le Express...
Perchè lo sto bloggando? Semplice... il dubbio mi era venuto mentre 
li spiegavo durante il corso su VSTS.
Ora... i DSL Tools richiedono almeno la Professional, ma il designer generato 
può essere installato a partire dalla Standard.
Quindi ora Janky può pensare seriamente a quel designer che tanto gli manca... 

Da dove partire? Da qui:
  Download: 
  Microsoft Visual Studio SDK February 2005 CTP including Domain-Specific 
  Language Tools
Using 
  Domain-Specific Language Tools, you can create a custom graphical designer 
  that uses your domain-specific diagram notation. You can then create custom 
  text templates that use models created in your designer to generate source 
  code and other files. In this release, the validation framework makes it easy 
  to apply constraints to the language and you can deploy the designer as a 
  standard installer package for use within Visual Studio 2005 (except for 
  Visual Studio Express Editions). However Domain-Specific Language Tools 
  requires Microsoft Visual Studio 2005 Professional Edition or higher. 
  Domain-Specific Language Tools is now included as a component of the Visual 
  Studio SDK.
Per maggiori informazioni andate qui: http://msdn.microsoft.com/vstudio/DSLTools/