start CFS3 with the "-m3dv" -option.
Create a second shortcut to your CFS3.exe by copying it. Right click on the new shortcut, choose "properties"
The **"target"-line should look like this: "C:\Program Files\Microsoft Games\Combat Flight Simulator3\cfs3.exe" (with the quotation marks!)
now add a space at the end of it and add -m3dv at the end again.
now it should lookt like this: "C:\Program Files\Microsoft Games\Combat Flight Simulator3\cfs3.exe" -m3dv
This opens CFS3 as a model viewer.
** I'm not sure ir it's called target in englich windows-versions, as mine is german. It's calle "Ziel", german for "target". It's the entry in the properties that points to the exe-file.
For ETO, MAW and RisingSun be sure the target points directly to the CFS3.EXE and not to the .bat file calling for the CFS3.EXE
A few more starting options are:
-time you can now increase and decrease game-speed by CTRL-SHIFT-E and CTRL-SHIFT-R
-window starts CFS3 in a window
-800 -1024 -1280 sets the size of the window, works only together with the -window option
Hope it helps