Project add reference COM warning - MSTSCLib not found

Using MSVWD2010Express

The following steps taken:

1) New Project>ASP>NET Web App(C#) ...  2) Project(menu)>Add Reference...> 3) COM(tab)>Microsoft Terminal Services Active Client 1.0 Type Library>OK(button)

Result:

-- In the References folder>MSTSCLib(with yellow warning symbol)

I note: warning shows everytime any COM reference is added, however .NET adds without warning.

Step 4) Build> Build Web Application

Result:

-- Error: 'MSTSCLib' Could not be found

TIA