OLE Automation Classes
These classes support automation clients (applications that control other applications). Automation servers (applications that can be controlled by other applications) are supported through dispatch maps.
COleDispatchDriver
Used to call automation servers from your automation client. When adding a class, this class is used to create type-safe classes for automation servers that provide a type library.
COleDispatchException
An exception resulting from an error during OLE automation. Automation exceptions are thrown by automation servers and caught by automation clients.