Richard,
Thanks for your reply!
Frankly, I am still comfused with the PDL you sent. Looks like the only place I would put my ACK proc is in the “TPS Inbound Data” of the Inbound tab, within the IB thread.
If I use a pdl as you suggested, where should I place it? I am currently using mlp_tcp.pdl with PROTOCOL:pdl-tcpip, for the IB thread. That is mandantory…
Sam 8)