In the project properties, on the References page, the Reference Paths functionality does not behave as expected. You can click Reference Paths and enter a path to identify assemblies to be referenced. For example, you can enter c:\build to identify assemblies in that directory. However, the assemblies in that directory are not listed on the .NET tab of the Add References dialog box.
To add references to assemblies that are not listed in the .NET tab of the Add References dialog, go to the Browse tab of the Add References dialog and browse to the assemblies you require.[556890]