Here is a useful .NET utility tool if you just want to test your code quickly without requiring you to launch VS.NET and create a new project setup.

Link:
Snippet Compiler
Download:
2.0.8.3 for .NET 2.0 | 2.0.7.1 for .NET 1.1
- It minimizes to the system tray of the taskbar.
- It can also build WinForm EXEs, console EXEs, or DLLs.
- You can compile multiple C#, VB.NET ASP.NET code.
- It can be used to store templates library as well.
- IntelliSense for static members and method
- You can also export your snippet in HTML format which can be publish to your blog.