Goto http://bit.ly/cinmqv and download it.
Goto http://bit.ly/bvjxE7 and download it.
Download ImgBurn from http://tinyurl.com/yl7bfmu and install it. 
Create an iso image of the 2 files you downloaded. ImgBurn works for this but BurnAware does not!
Goto http://bit.ly/aHyCGe and download the boot disk, it doesn't matter if you have a different version of DOS.
Start your Virtual DOS machine, and mount Dos6.22.img onto the floppy drive, then reset the machine.

Type the following below, one after another.

R:
copy MSCDEX.EXE C:
copy oakcdrom.sys C:

Now, you may unmount the floppy, and reset the VM. 
Edit the CONFIG.SYS file by typing "edit CONFIG.SYS" with out quotes.
Add the line:
device=c:\oakcdrom.sys /d:oemcdrom
Save the file using the alt key, then scrolling down to Save and then hit enter.
Exit by hitting the alt key, then the up arrow, and then hit enter.
Edit the AUTOEXEC.BAT file "edit AUTOEXEC.BAT" with out quotes.
Add the line:
mscdex.exe /d:oemcdrom
Save the file using the alt key, then scrolling down to Save and then hit enter.
Exit by hitting the alt key, then the up arrow, and then hit enter.
Now reboot, and CD ROMS (isos) should work as drive D:.