What other 32-bit OS could SpinRite use with On Time shutting down?

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Active member
Sep 30, 2020
Now that RTOS-32 is on shaky ground has anyone tried other 32-bit OSes out that might suit Steve's use for running SpinRite in?

Here's the costs Steve listed for licensing RTOS-32:
      Module         Binary        Source
    -----------   -----------   -----------
    RTTarget-32    $ 1,500.00    $ 3,000.00
    RTKernel-32    $ 1,500.00    $ 3,000.00
    RTFiles-32     $ 1,500.00    $ 3,000.00
    RTUSB-32       $ 1,500.00    $ 3,000.00
    RTPEG-32       $ 2,500.00    $ 5,000.00
    RTIP-32        $ 3,000.00    $ 6,000.00
                   $11,500.00 +  $23,000.00 = $34,500.00

There's always ReactOS which is still 32-bit and is Windows compatible. Last time I ran it in VirtualBox everything worked great out of the box (even ScummVM installed and ran games fine).

Another one that's non-linux but still a compact 32-bit OS I've tried out is Visopsys which has been in development since 1997 and I found easy to use.
The best option would be a very light Linux (with almost everything compiled out or configured off) but that would require Steve to switch from a DOS API to a Linux API and I don't believe that would be a trivial change for him. (Not saying it wouldn't be possible, just saying he wouldn't find it as productive as he would something support the Win32 API, which he's already mastered.)