Resolution:
Description:
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Every time a TIBCO Enterprise Message Service (EMS) .NET client application runs in on a Microsoft Windows specific host, an error message similar to the following is seen:

TIBCO.EMS.EMSException: Invalid protocol specification
   at TIBCO.EMS.CFImpl._CreateConnection(String userName, String password)
   at TIBCO.EMS.QueueConnectionFactory.CreateQueueConnection(String userName, String password)
   at TIBCO.EMS.ADMIN.MessengerUtil..ctor(String url, String username, String password, Hashtable sslParams)

Environment:
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Operative System: Windows.
Client: .NET client

Resolution:
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This error occurs when the assemblies on the host machine for TIBCO.EMS, TIBCO.EMS.ADMIN and TIBCO.EMS-CF are incorrect for any of the following reasons:

In order to address this problem follow these steps:

1. In the case where the assemblies are available in on the machine where the .NET application fails, uninstall TIBCO.EMS and TIBCO.EMS.ADMIN from the .NET GAC.

Obtain the dlls TIBCO.EMS.dll and TIBCO.EMS.ADMIN.dll from the correct TIBCO Enterprise Message Service (EMS) version and install them in the .NET GAC. If the application runs fine on another Windows host, then the dlls can be copied from that host.

Note: Assemblies in the Windows host are usually located in c:/windows/assembly.

An error message is seen every time a TIBCO Enterprise Message Service (EMS) .NET client runs on a specific host: “Invalid protocol specification”.