I have a long running task that's performed by a business object ActiveX DLL installed on the same computer as the client EXE. Is there a way to get a progress status from the DLL to the EXE?

FYI, the client EXE knows the maximum number of computation the DLL needs to perform on a one-by-one bases till finished. I would like to display a progress status (via progressbar) of how many have finished (1 of 100 done).