Implementing HPProviderInit for Hook Providers

The HPProviderInit entry point should create a message hook provider object, initialize it, and return a pointer to it in the lppSpoolerHook pointer parameter. Initializing the spooler hook object is usually accomplished by:

• Storing the MAPI session pointer, instance handle, and memory allocation routine pointers that are passed in by MAPI.
• Getting the hook provider's configuration information out of its profile section.
• Verifying that its configuration information is complete and correctly formatted.
• Connecting to any other MAPI service providers needed — such as store providers — by getting pointers to them from MAPI through the session pointer.
• Initializing any rules or filters that should be started when the hook provider is loaded.

For more details, see ISpoolerHook : IUnknown.