How to: Use WMI Object Methods

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Windows Management Instrumentation (WMI) object methods are used to perform actions on Speech Server objects.

You can use the methods of the MSS and LogSettings WMI classes in the MSS Class and LogSettings Class to perform actions on Speech Server objects.

Additional service-related methods are provided in the WMI component of the Microsoft Windows operating system and documented in the Windows Platform Software Development Kit (SDK). For more information, see the Win32_Service WMI class.

Monitoring Asynchronous Methods

Methods can be synchronous or asynchronous. Synchronous methods take control of a thread while the method executes. Most methods are synchronous. Synchronous methods are easier to write and use, but if they do not finish immediately they can block an application. Asynchronous methods return control to the thread that called them, while they execute on another thread. The advantage to using asynchronous methods is that program flow can continue while a time-consuming operation is under way on another thread. The disadvantage is that there needs be a way to determine when the method is complete. All Speech Server object methods are asynchronous.

To determine whether an asynchronous method is complete

• Use event notifications, or look at the server state in the Speech Server Administrator console, to determine whether a method such as StartService or StopService is complete.