Call this method to update the system registry for each object in the object map.
HRESULT RegisterServer( BOOL bRegTypeLib = FALSE, const CLSID* pCLSID = NULL );
TRUE if the type library is to be registered. The default value is FALSE.
Points to the CLSID of the object to be registered. If NULL (the default value), all objects in the object map will be registered.
Returns S_OK on success, or an error HRESULT on failure.
Calls the global function AtlComModuleRegisterServer.