Unipolar stepper motor softwear on // port

Hello
Anybody can tell me a simple MS-Dos softwear capable to control two Unipolar stepper motor (only speed control).
Speed control must be independent for the two motors
motors to // port interface is simple (see diagramm below)

thnks

With a stepper you always control speed and direction. Just a matter of the sequence you feed the stepper.
try this page **broken link removed**

yes, but i don't need to control direction, this explains why my electric diagram is very simple, (there is a simple ULN2803)
Softwears designed for CNC applications uses two output LPT port per motor : one for clock and one for direction, so, in this case, i must use another IC before ULN (exemple the L297)
If there is a softwear who can use FOUR clock output per motor ???

you are confusing a raw stepper with a stepper driven by a controller.

Look at Table of Stepping Sequences
here https://www.stepperworld.com/Tutorials/pgUnipolarTutorial.htm