This can happen if there is a reference to SHELLPRT in the WIN.INI file. (SHELLPRT references seem to be installed by Bitstream and WinFax?) Here is an excerpt of a WIN.INI file with references to SHELLPRT:
[PRINTER PORTS]
HP LASERJET IIP=SHELLPRT, LPT1:,15,45
[DEVICES]
HP LASERJET IIP=SHELLPRT, LPT1:
[SHELLDEVICES]
HP LASERJET IIP=HPPCL,,,1
Remove the SHELLPRT references so the lines look like this:
[PRINTER PORTS]
HP LASERJET IIP=LPT1:,15,45
[DEVICES]
HP LASERJET IIP=LPT1:
[SHELLDEVICES]