I'm looking for extensions kcamath.mfx and overlay.mfx for Fusion 2.5. I have the .cox versions for both of them and thought I might be able to convert them. I downloaded overlay.mfx from DarkWire but I had issues with the .exe file. MMF2ExtPatk2 contains kcamath.mfx doesn't run on Fusion 2.5
Where there is a CF2.5 version it is usually available via the in-Fusion extension viewer (e.g. Advanced Math object).
Without the source code you can't convert old .cox files to work on CF2.5, but you can add the files to a folder to still be able to run your \Extensions\mmf1\ folder.
So it seems the link to the image hasn't loaded now either.
Basically the error message when trying to install the extensions says, Multimedia Fusion #2 is not installed. No, because
I now have the newer version 2.5!
Don't worry, I'll just have to use my old computer that I use for backing up files etc.