Immediate Window without debugging

Question

Rapid prototyping is arguably one of the most efficient ways to test new designs and I believe this to hold true for programming too.

I am looking for a tool similar to Matlab where one can execute some C# code while you type. The Immediate Window is almost ideal, but is naturally only usable when debugging.

Is there a way to use the Immediate Window (or a similar tool) without having to switch into debugging mode?

UPDATE:

After some more googling I found:

• C# Shell (cssh): A cool idea, but quite limited at this stage.
• SnippetCompiler: Nice, but I would prefer a command line type behaviour where the command is execute once I hit return.

Answer 1

Try LinqPad, it rocks ! It is made to test Linq queries but it ends being the best environment to try any kind of C# code ever made.

http://www.linqpad.net/

It is free but need to be activated (paid) to support intellisense.