Not sure what your intent is here. A Windows virtual machine can't run a Mac application, and vice-versa.
A virtual machine is a completely separate computer. If it doesn't have an application installed on it, it can't run it.
This is about an Apple host and an Apple virtual. The upcoming Apple OS X will not run 32 bit apps. So, I need to run those in an older OS. Hence, in a virtual older Apple OS. Do I copy them to the virtual or just keep working with them in a shared folder on the new OS. Which is more effective?
Thanks for the reply and the help.
I don't know which is more efficient in terms of performance, but I would definitely reinstall (not just copy) the apps in the virtual machine. Reason being to keep a clear separation between the different operating systems. You really don't want 32-bit apps hanging around in 10.15, nor for the VM to 'see' apps which will not run in the 10.14 (or 10.13) VM. Keep the shared folders for your data.
I already use a 10.13 VM in that way because I can't get my Canon scanning software to work in 10.14. I shall continue with my 10.13 VM once I have updated to 10.15.
Thank you; understood.