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)   DOSPRN 1.79
DOSPRN allows to print reports from your favorite DOS program on the modern printers independently of their types. USB, PDF, network printers supported.

 3)   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