1: We should initialize the COM environment :: Coinitialize (null); what is it done, or ask Gates!
2: Introducing the target COM set up #import "c: //abc/yourcom.dll" whether the default Namsapce is using you.
3: When using, we should create an instance, the following work is based on the use of the smart pointer, PSMART.CREATEINSTANCE ("{CLSID}");
4: Release the reference PSMar.Release ();
5: Release the resources of the COM environment :: Couninitialize ();
Here is a problem that you want to pay attention to, the smart pointer is a C packaging object, and he has been overloaded -> operation symbol, because we use this operation symbol, its meaning will be different from our regular use, but Use the method in the interface.
