My first question is do you need these translators?
Archicad current version can open file back to version 8.1
Do you really have files older than that, that you need to access?
If you do, the version 10 converter can read back to version 6.5
Version 7 converter can read back to version 4.1
So you don't really need version 9 converter at all.
So if 7 & 10 work, you are covered.
Windows 11 may well be the problem.
Have you tried changing its compatibility mode to Windows 8?
There are a few FAQs that may be of help.
Pay special attention to the second one I highlighted.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10