"Add a new tab in the Visual Studio extension manager dialog window to manage private extensions outside the visual studio public gallery. Source code for client and server in available on codeplex ..."
Extension manager uses intensively MEF to manage extensions in Visual Studio. This technology can be used too to extend the Extension Manager Window by implementing the Microsoft.VisualStudio.ExtensionManager.IVsEtensionManagerDialogProvider with an export MEF attribute.
Implementing this interface is not very trivial so this project uses some codes from an older Nuget project version.
A basic server implementation is also provided.
You can change repository server address with the options page.
Note : Take into account that the project uses assemblies located in the Visual Studio Private Assemblies which are unsupported assemblies and can be change without notifications in future visual studio version.
The CodePlex project includes the VISX, and the server side setup (i.e. the Private Gallery you host) and source for both.