Apps similar to MidiKey2Key include MIDI Translator Pro (Bomes midi), which has a free version. Other options are MIDI Command Studio. Between them they cover Windows and Mac.
Bome MIDI Translator Pro is a popular MIDI and keystroke mapping tool: use it for controlling arbitrary software by way of MIDI and keystrokes. Its rich feature set also allows it to be used for general Windows automation.
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MIDI Command Studio is a Windows app that lets you control Windows software with a MIDI controller. Map buttons, knobs and faders to shortcuts, macros, volume controls, and other actions.
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