RemoteApp and Desktop Connections issue

Hello.

I try to setup new RemoteApp and Desktop Connection silently by command from c#. I use next code for setup connection:

var processStartInfo = new ProcessStartInfo
                                       {
                                           FileName = "cmd.exe",
                                           Verb = "runas",
                                           Arguments = "/C rundll32.exe tsworkspace,WorkspaceSilentSetup RemoteAppConfig.wcx",
                                           UseShellExecute = false,
                                           WindowStyle = ProcessWindowStyle.Hidden
                                       };

Process.Start(processStartInfo);

It works correctly(connection created) only if I launch application in debug mode. But if I install my application by msi, connection won't created. And I see next error in Event Viewer: "An error occurred. Contact your workplace administrator for assistance."

Could you help me please?