I was able to get Procomm Plus 2.01 along with MS-DOS 3.31 onto a single 360k floppy to make a bootable disk, but I had to remove the help files and PCSETUP.EXE program that configures the settings for the terminal emulator. You can fit Procomm Plus onto a single non-bootable 360k disk without problems, it supports installing to a single floppy, but only leaves 4k left over.