Unfortunately my old PC doesn't seem to like the line device=jemmex.exe in config.sys and upon boot spams my screen super fast with errors from which I can read "interrupt divided by zero". Can I replace JEMM with something else, like QEMM for example? The jemmex maintainer prefers bug reports to …

I think for DOS it can be Moslo. Check this list here List of Slowdown Utilities (Beta)

Unfortunately my old PC doesn't seem to like the line device=jemmex.exe in config.sys and upon boot spams my screen super fast with errors from which I can read "interrupt divided by zero". Can I replace JEMM with something else, like QEMM for example?