Dos Program Wont use usb floppy

Hey everyone,

I have a new pc, with windows 10 32 bit, running an old program based off MS-dos that wont recognize USB Floppy drive.

Windows recognized the floppy and shows me all the files in the diskette/ but the dos program dosn't read the diskette
This dos program has a back up system , that wont recognize a backup of the program that was made on a windows 98 pc

Any ideas on how to solve this problem?


BACKGROUND INFO:
I have been working on my grandpa's new computer for about a month now.

We have a DOS program that needed a new printer so my 1st thought was windows 10 on new hardware, use a Virtual box to run windows 98 that runs the program and everything.
That was too much trouble to get working properly .

Then i realized win 10 32bit has support for dos programs. " cut out the middle man" the dos program works with my new printer using a program called "dosusbprint"
that all works okay.

Well then is there a program that i can use to make this happen or a driver that will allow the dos program to use the usb floppy drive ?

Dos USB Drivers :-
http://www.bootdisk.com/usb.htm

alphanumeric said:

An actual real DOS program, or a program that runs from Windows command Line interface? I ask because its quit common for people to mix up the two. The Windows 10 command prompt is NOT DOS.
May I ask what is the name of this program is, link if possible, and how your launching it in Windows 10?

yes its an actual real dos program
the name of the software is called RPMSoftware 4.8
the program is running thru NTVDM.EXE that windows 10 :32 bit installed the first time I ran the program. The program was old around the time of windows 98 but it needs to read and write to a USB floppy

i have no way to link it here as there is no website/ no wiki page/ no link at all to the program anywhere that I could find online.

It can be a size thing as well remember we had 20 meg hds in those days cso if its big usb it might not see it depending on the version of dos it may have to be fat

I just tested a USB floppy drive on my older Dell Vostro 1510 and it worked fine at a Command Prompt to write and erase, not so much with PowerShell. It didn't work [not yet anyway] on my ASUS Desktop from a year ago, maybe it's the difference between BIOS and UEFI setup.