[rwmj]

As I said in another thread, Win95 and RHEL 3 are the oldest we've come across recently. Guests of this sort are not converted, they're copied and run using emulated devices (IDE/SATA, e1000 network etc). We help customers as best we can but don't support these cases.

Usually the story is they're running something like CNC control which originally ran on baremetal, then got virtualized onto VMware when the hardware died (possibly using VDI to make it appear on a terminal close to the machien), and it's still doing the same thing effectively today.