I will cut and paste from the tutorial on the Dosbox web site.
Now, the hardest part, getting games to run. First, run dosbox.exe in your DOSBox folder. Remember that OLDGAMES directory you created in Step 1? You have to basically set that as new directory just for DOSBox. Essentially, it's going to become the C:\> drive of DOSBox. So, type:
Z:\>MOUNT C C:\OLDGAMES
Drive C mounted as local directory C:\OLDGAMES\
To dissect the above:
MOUNT: Tells the program to mount a directory
C: Tells the program what you want your new drive to be called (leaving it as C: is fine)
C:\OLDGAMES: This is the directory I want to set as the new drive for DOSBox, because all my games are in it. If you created a different directory, write in the directory you created.
(Note: If you want to mount a CD-ROM instead of a folder, type this:
Z:\>MOUNT D D:\ -t cdrom
MSCDEX installed.
Drive D is mounted as CDRom D:\
(Note: "cdrom" is case sensitive and must be lowercase!)
In this example, D:\ -T cdrom tells DOSBox that my D:\ drive is a CD-ROM drive, and the first D, tells DOSBox what my new drive name should be called. If you are running your game off a CD-ROM then make sure to use D: in place of C: in the following examples. You can find instructions on how to mount other devices, such as floppy drives, in the mount section).
After you've done this, you will be prompted with a Z:\>. Now, just write what you wanted to call your new DOSBox drive, which as I said above, we called C. To navigate to that newly mounted drive just type in:
Z:\>C:
C:\>
Hopefully, you're all set! Now, it's time to run the game. Previously I had mentioned a game called TESTDRIV in my OLDGAMES folder. I now want DOSBox to go to that folder. So type in:
C:\>CD TESTDRIV
C:\TESTDRIV>
It is at this point that I get the message regarding not finding X-WING CD
John