Visual Web Developer 2008 Express is the development environment for developing .NET Web applications. This is required if you want to program with Ecopath Online. Note: you only need Visual Web Developer 2008 Express. Visual Studio (not free) enable you to have more functionality such as Class Diagrams and Nested Project Structure which is not crucial to Ecopath Online development. 1. Download Visual Web Developer: http://www.microsoft.com/express/vwd/ 2. Run the file called vwdsetup.exe 3. Go though installation process... 4. For installation options: SQL Server is not required. 5. The installation program will now download the required files. (Internet is required). 6. Updates at this time is not required. 7. Register Visual Web Developer 2008 Express at your discretion.