Thanks Doug
My problem was that I forgot how to navigate directories from the command prompt. But I am able to get around that by placing the ai2mpc program and the file to be converted in my user folder because that is the folder that the command prompt goes to when I first open command prompt.
From there I just typed the program file name (ai2mpc), the file name of the file to be converted (roundedrectangle.ai), and then typed in the name I want to call the converted file (roundedrectangle.mpc) with the .mpc file extension added. So it looked like this:
C:\users\AlanMalmstrom>ai2mpc roundedrectange.ai roundedrectange.mpc
I hit enter and it worked.
Thanks, Alan