Now, there are three reasons this can happen: 1) It's a 64-Bit application; 2) the EXE file needs to be "extracted" by something like WinRAR, or 3) it requires a later Operating System. I was told in the forums there that it can run as a standalone but needs Vista at least. However, the most recent version of SCUMMVM was said to run it.
The most recent I had was 2.2. So, over to Downloads here I went, and saw 2.5. Downloaded it, tried it- it never gets past the "Language Selection" screen, but it did get that far on the XP Sony even. This in of itself is impressive because it's the first time I've seen something for Vista or later run at all on the thing. If the other download works for Windows 98- or even 95!- and can get the game running then of course the potential pool of customers for the game is GREATLY increased too.

The only recommendation is that like 2.2 you can manipulate the windowed size, and the configuration file (maybe include a shortcut to it in the EXE's folder?) has something to manually allow one to switch between DirectX and OpenGL. I had to use 2.2 to make that switch for 2.5 on the Sony.
Now here's the weird part- just at random I go through other games, seeing what else SCUMMVM can do. There is a game called "Morphopolis" at Steam and GOG
https://www.gog.com/game/Morphopolis
When you click "Choose" you actually get a result! It says it's an "unknown game variant" and the matched game ID for the director engine is "athletics-win," the rest says "Project.EXE" (the name of the game's EXE file), 0, 9bcde08c17abe2c9f536b144d544b695, 3347456."
Click "Add Anyway" and the ID is "athletics-win-1" and the name "International Athletics (Windows/English).
Try to run it and you get a white window saying "ERROR: Invalid projector tag found in v4 EXE [MZ..]!
Does this mean this weird game is actually going to eventually work on SCUMMVM along with "Zniw Adventure?" That would be even more amazing.
Zniw Demo
https://www.adventuregamestudio.co.uk/s ... game/1925/