three questions about CoInitialize/CoUninitialize

Hello everyone,


Am I correct for the understanding of the following three questions about CoInitialize/CoUninitialize?

1.

For each thread which utilizes COM, we need to call CoInitialize/CoUninitialize. Not for each process.

2.

There is no harm to call CoUninitialize even if we do not call CoInitialize? And if we call CoInitialize N times on a thread, we need to call CoUninitialize the same of times (N times, not only 1 time) on a thread to release all resources?

3.

CoInitializeEx will invoke CoInitialize?


thanks in advance,
George

http://msdn.microsoft.com/en-us/libr...43(VS.85).aspx explains all.