http://blogs.msdn.com/b/delay/archive/2010/06/08/the-source-code-is-the-executable-rtm-edition-updated-csi-a-c-interpreter-with-source-and-tests-for-net-4-rtm.aspxCSI is a simple C# interpreter and has been available for .NET 1.1, 2.0, 3.0, and 3.5 for a while now. Earlier this year, I updated CSI for .NET 4 Beta 2 , and now I've (somewhat belatedly) updated it for the final, public .NET 4 Framework . Today's postenTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/delay/archive/2010/06/08/the-source-code-is-the-executable-rtm-edition-updated-csi-a-c-interpreter-with-source-and-tests-for-net-4-rtm.aspx#10023199Thu, 10 Jun 2010 21:46:12 GMT91d46819-8472-40ad-a661-2c78acb4018c:10023199HM<p>THANKS!</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10023199" width="1" height="1">