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    <p>The bare minimums for instantiating a COM object are as follows:</p> <p>1) Must have a COM apartment available.</p> <p>This is accomplished by most applications by calling CoInitialize / CoInitializeEx to setup the COM library and the initial COM apartment if it is the first time for a process.</p> <p>2) Call CoCreateInstance / CoCreateInstanceEx to create an object, and specify flags to denote how it will be instantiated.</p> <p>3) Properly balance calls of AddRef and Release on the interfaces of any COM components that you create, calling the last Release() when you are done using a COM component.</p> <p>-</p> <p>In a managed application, #1 is almost always handled for you. #2 is abstracted away if you import a reference to a COM library, and you can just use the imported names as if they were .NET class definitions and such. #3 is automatically handled for you, but your needs may vary. Unfortunately, there are sometimes quirks in how references are handled in managed applications, which can cause COM objects to stick around longer than intended. The Marshal helper class in System.Runtime has methods that can help you out there if you encounter issues.</p> <p>-</p> <p>In an unmanaged application, you will have to do some legwork if you are creating an application from scratch.</p> <ol> <li>Call CoInitialize/CoInitializeEx early in your application's main thread to setup the apartment.</li> <li>When your application's main thread is about to exit, call CoUninitialize() to close out the apartment.</li> <li>For additional threads that you create, you should also call CoInitialize/CoInitializeEx when they start if you need to use COM objects from those threads. Also, depending on your application you may want to set the apartment parameters.</li> <li>For those threads, also call CoUninitialize() when they are exiting to cleanup properly.</li> </ol>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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