Modern 64-bit systems handle serial and USB-to-serial devices differently. The PPI (Point-to-Point Interface) protocol timings are extremely sensitive, and the emulator’s timing loops break under Windows 10’s hardware abstraction layer.
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However, here’s the hard truth: Trying to run it on Windows 10 64-bit is a battle against compatibility. But don't throw in the towel yet. Here is everything you need to know.
Many original versions of Sentemul were built for 32-bit (x86) systems. To work on a 64-bit OS, users often require a specific 64-bit driver (like MultiKey64 ) or a version of the tool updated for x64 environments. General Usage and Setup Steps
Are you trying to , or are you just exploring legacy software emulation ?