[Q]: Как превратить обычный Windows 3.1 в Win-OS/2?

[A]: jari laaksonen

Если немного поколдовать:

Here are the files you need from Win-OS/2 to get Ms-Windows 3.1 to
run under OS/2 2.1GA:

in \windows directory:
  winos2.com
  winsheld.exe

in \windows\system directory:
  mouse.drv
  os2gdi.exe
  os2k386.exe
  os2user.exe
  winsclip.dll
  winsdde.dll
  winsmsg.dll
  <video drivers, e.g. supervga.drv + swinvga.drv>

Add these lines into system.ini:

[boot]
sdisplay.drv=swinvga.drv
useos2shield=1
os2shield=winsheld.exe
MAVDMApps=
WAVDMAPPS=

(sdisplay.drv means seamless driver)

Only problem here is that from DOS boot you need to change the mouse.drv to the
original because the win-os/2 version prevents Windows loading (and vice
versa).