I have this old program that I use and it uses an external modem to dial out to other machines. When I try to run it in DOSBox it tells me that there is no com port. I have the modem attached to com 1 and dosbox setup with directserial on com one, but the program still can't seem to find the com …

I did all of that and I still can't access the com port.

How do you get it to pass through the host system?