When the Use Microsoft MQ Client selection is set to Yes or the Microsoft MQ Client is used in a .NET Framework program, the WebSphere MQ Server returns a protocol error when a GET command is executed.
Additionally, the following information is logged in the Application event log:
Application: BTSNTSvc64.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.InvalidOperationException