Microsoft Shared Fax on BackOffice

[Christian]

Hi all,
I'm using Microsoft Shared Fax on Backoffice 2000.
Well I had written my own program to send fax using the old Fax service
model.
It does not work anymore with Microsoft Shared Fax.
I know that there is a new extended model in Windows XP and 2003, I can
access through the fxscomex.dll

What can I do with Microsoft Shared Fax on BackOffice 2000 ?

Thanks in advance,
Christian