Visual C# 2005/2008 Express Edition, Visual Basic 2005/2008 Express Edition, and Visual Web Developer 2005/2008 Express Edition, are sub-features of the Web Application Developer Framework SDK.
Feature dependencies
The Visual C# 2005 Express Integration feature of the ArcGIS Server for the Microsoft .NET Framework setup, requires Microsoft Visual C# 2005 Express Edition to be installed.
The Visual Basic 2005 Express Integration feature of the ArcGIS Server for the Microsoft .NET Framework setup, requires Microsoft Visual Basic 2005 Express Edition to be installed.
The Visual Web Developer 2005 Express Integration feature of the ArcGIS Server for the Microsoft .NET Framework setup, requires Microsoft Visual Web Developer 2005 Express Edition to be installed.
The Visual C# 2008 Express Integration feature of the ArcGIS Server for the Microsoft .NET Framework setup, requires Microsoft Visual C# 2008 Express Edition to be installed.
The Visual Basic 2008 Express Integration feature of the ArcGIS Server for the Microsoft .NET Framework setup, requires Microsoft Visual Basic 2008 Express Edition to be installed.
The Visual Web Developer 2008 Express Integration feature of the ArcGIS Server for the Microsoft .NET Framework setup, requires Microsoft Visual Web Developer 2008 Express Edition to be installed.
Unavailable features can be added at a later time by installing the required dependency and then going to Add/Remove Programs -> ArcGIS Server for the Microsoft .NET Framework -> Change -> Modify. The feature that had been unavailable before should now be visible and marked with a red X. Select the feature for installation and follow the on-screen instructions until the installation process has successfully completed. Please note, uninstalling and reinstalling the software is not required.