[comp.sys.ibm.pc] Com:

andyross@ddsw1.MCS.COM ([andrew rossmann]) (12/30/88)

  Unfortunately, most programs control the serial ports directly, bypassing
DOS or the BIOS, because that's the only way to get practical use of the
ports. Therefore, trying to connect some sort of re-direction program won't
work. Most programs use either DOS or BIOS for the printer, since there are
few problems with it.