help with batch file (entering commands)

I need to be able to fill out cmmands that will then be entered into the running program that the batch file starts up. (i.e. as though i was entering text myself). Is this possible. I know it is into DOS command window but can't make it work into command window once the program starts.

Any help would be great. I just need to type, "c", "1", "100" <enter key>, "100", <enter key>

pleeeeese

--what i have working--
:: startsoftware.bat
:: Runs software
::
@ECHO OFF

C:
CD\folder
mysoftware