you are novice when it comes google or checking this forum for guides also ? (laziness is not a valid excuse)
Search and ask what you don't understand

Don't go posting in every subforum here.

I downloaded DOSBox on my laptop but still cant run the MS Dos program. Maybe am not doing it right.

yes you are not reading any guide here
Or even typing intro
in dosbox will help to get you started
Maybe visit this page
www.dosbox.com/tut

It might help

Thanks for the response. I want to install an old GAUSSX (statistical software) that runs on MS Dos on windows 7. It is not a game.

Well, as you know dosbox is geared for games. You could try running qemu with freedos (or MS-DOS if you have a copy.)

Here is a nice tutorial

http://how-to.wikia.com/wiki/How_to_install_FreeDOS_in_QEMU

Thanks Qbix & boyofdestiny the DOSBox tutorial was very useful to me. I have successfully installed the program.I have been searching to resolve the following problem but am yet to find a solution. I cant view/edit what is on the old MS Dos program am currently working on. The view/edit option is suppose to open as a notepad file where adjustment can be made. When l click on the view/edit option notthing comes up. My guess is there is some configuration l need to do on my DOSBox.

DOSBox cannot opened notepad because notepad is not a DOS program.

D0Sfreak I wouldn't be so sure about that.

That remark gets this thread to a completely new level.

Yes, that's probably not the "notepad" that he meant.
The editor might make use of an MS-DOS application, such as EDIT.EXE (which in turn uses QBASIC.EXE).

peterferrie wrote:

Yes, that's probably not the "notepad" that he meant.
The editor might make use of an MS-DOS application, such as EDIT.EXE (which in turn uses QBASIC.EXE).

As long as we're nitpicking, it's actually EDIT.COM (if QBASIC.EXE is involved).