Visual Studio 2010 or Visual Basic Express 2010 are the development environments that we use to program EwE. Either one is required if you want to compile the source code of EwE. Visual Basic Express 2010 is available for download for free from the Microsoft website (see link below). Visual Studio 2010 is not free, and enables you to have more functionality such as Class Diagrams and Nested Project folders, which are features that are not crucial for developing EwE.
Now your system is ready to load, modify, compile, execute and debug the EwE6 source code.