Maybe try FreeSCI, it support this game and shouldn't result such a msg:
http://freesci.linuxgames.com/?page=games
(Pre-compiled binaries for different systems)

😉

I think I knew such msgs from Sierra games in earlier times.

There is no specified video in the RESOURCE.CFG. Just run INSALL.EXE to select the drivers to be used. Easier for a newbie to do than to get Free SCI to work. Besides, SQ3 is VGA and gluten is not to be found pre compiled for Windows. Free SCI is a near dead project.

Thanks for the help. I had run the install, but it doesn't say anything about video.

I downloaded freeSCI and it worked! Thanks for that link - I can play now. 😁 It would be nice to get it to work in DOSBox, though, if anyone has any ideas.

You can manually edit the RESOURCE.CFG file to set the video driver. just be sure that the .drv file is in the game's folder.

Well, I'm still having trouble.

I had used DOSBox to run another Sierra game a year or two ago, so I got drivers from that directory and put them in the SQ3 directory, then edited the resource.cfg file to point to them. Now I don't get errors, but the DOSBox window shows just a floppy icon. If I click in that window, my mouse curser becomes the floppy icon and I can't get out of that window - I have to bring up the program manager and kill DOSBox there.

Any ideas?

Run INSTALL.EXE

I had done that before, but I tried it again, now that I have fiddled with the resource.cfg file. Unfortunately nothing changed - still get the floppy icon and still get stuck in the DOSBox window.

I appreciate all your help. Thanks. Anything else you can think of would also be appreciated. 😀

Your RESOURCE.CFG should be:

videoDrv=EGA320.DRV
soundDrv=ADL.DRV
kbdDrv=IBMKBD.DRV
mouseDrv= YES

Just make sure that the EGA320.DRV, ADL.DRV and IBMKBD.DRV drivers are in the game's folder.

Okay, I went and bought the Compilation CD, rather than trying to get my old files to work (since it also had a few of the SQ games I hadn't played way back when). It's advertised as running on XP.

So, I load it up and ..... it uses DOSBox to run! 😁

Pretty funny, but happily, it works! I suspect if I had just gotten the right drivers, I could have made my old files work - I think you had gotten me most of the way there, collector. Thanks for all your help.