1)   DOS2USB 1.0
DOS2USB is a small utility to extend the life of MS-DOS program by providing printing support on Windows only printer (including USB).

 2)   Printfil 5.6
Print from DOS-Windows-Unix-Linux to Windows printers: USB, GDI, PDF, e-mail, network, fax, virtual. Capture from LPT1: to LPT9: and redirect the jobs, even to a printer physically connected to the captured port and w/out physical LPT ports installed