In a Microsoft Host Integration Server 2010 environment, you stop the SnaBase service on a client computer. For example, you stop the service to perform maintenance tasks. If a 3270 Emulator is running, the SnaBase service reports that the service stopped successfully. Additionally, the 3270 Emulator is stopped.
However, the 3270 Emulator is not stopped correctly and still appears in the task list. Additionally, when you try to restart the SnaBase service, the service does not restart.
This problem occurs because the SnaDMOD component is not stopped correctly in this situation.
Cumulative update information
The fix that resolves this problem is included in cumulative update package 8 for Host Integration Server 2010. For more information about how to obtain the cumulative update package, see Cumulative update package 8 for Host Integration Server 2010.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.