In the previous program, when we “stop” the service, if it is successfully stopped, we receive zero as the returned value. I stated that a non-zero value gets returned if unsuccessful. Using this value, we can figure out why it failed to “stop” (or “start” as well). The following table gives the list of return values and descriptions for both methods “StopService” and “StartService”.
By using the “Select..Case” statement with the return code, we can display the proper result using the definitions from the above table. Even though I copied the above table from WMI SDK documentation, I thought it worthwhile to include the table as part of this article to provide you with complete information.
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