Ways to test the .EXE final program ???

I built my program, it works fine...but what is that DOS4WG tool that
some DOS programs using ?
I used only the  $M 8192,0,0  command in my program. What more must I
have to use ?
Anyway, how can I test my program ?
Windows is a real pin in the $% !

Using TP 7 for DOS  (No Turbo Vision , No graphics)