Lync MSPL Application not being trusted

Question

I have a MSPL script that is "embedded" into a C# Application. running the MSPL Script directly on the Front End works fine but the deployment process is pretty complicated and lengthy. When I try the same with the C# App on the Front End I always get the following Exception

Application Not Authorized

Inner Exception: Queue could not be created.

This is my Code:

// Handler for MSPL Callbacks
LyncSIPHandler serverApplication = new LyncSIPHandler();

// Load the app manifest from a file.
ApplicationManifest manifest = ApplicationManifest.CreateFromFile("msplscript.am");
try {
    manifest.Compile();
    Util.Log(manifest.ApplicationUri);
}
catch (CompilerErrorException ex) {
    Util.Log("#2 MSPL Compile: " + ex.Message);
}

ServerAgent agent = null;
try {
    agent = new ServerAgent(serverApplication, manifest);
}
catch (Exception ex) {
    Util.Log("#3 " + ex.Message);
}

The Exception is thrown when I try to create the ServerAgent with the compiled Script. The output of Log#1 (manifest.ApplicationUri) is [...URL...]/LyncToolApp. When I run Get-CSServerApplication on the Server (Lync 2013) I get the following output

Identity   : Service:Registrar:[...server...]/LyncToolApp
Priority   : 6
Uri        : [...url...]/LyncToolApp
Name       : LyncToolApp
Enabled    : True
Critical   : False
ScriptName :
Script     :

What have I missed to make the App run?

Note: I was following this MSPL Tutorial.

Answer 1

The problem was that I had to run the Application as an Administrator even though I was logged in with an Admin Account that was added to the local "RTC Server Applications" group.

I have already tried that but then my next mistake was that the Windows Forms window did not open (why is another question...) so I thought it does not work.

This MSDN Article "Register a managed application on Lync Server 2013" also helped.

Answer 2

The message "Queue could not be created" usually means you need to add the account which runs your code to the "RTC Server Applications" group on the local machine.