You know I like FREE. Well if you want to install DOS in a VM environment and do not have any DOS disks, consider FREEDOS. You even get some networking from this DOS.
They even have a video of how to install FREEDOS in VMWare.
I installed under VMWare server 1.08 and it works. Except if I launch it with EM386 support then it bugs out. But without that it works.
Get it here:
Freedos <–Clicky the Link thing!