There should be no difference between 4.22 and 4.24.

Try this:
Shortcut: ~LButton & RButton (double click on shortcut field to enter it)
Command:
Msgbox This is a test

Hi Peter, I’m not sure I understand what you mean. Auto complete word recognition is cancelled by pressing Enter, Space, Escape, comma and many other keys.

I could only check if I see the file - you can send it to our support mail.

Thanks, I see. We will resolve this in the next release. Until then you can change the Pause shortcut to something else, for example Ctrl + F2.

As suggested by error report, there must be a duplicate - please check again.

What does the error report say?

There have been reports that certain laptops (Alienware or similar) run some processes which effectively block FastKeys and similar software. Some users were successful by disabling "Nahimic" service. Could you try that? Please also check and try to disable some other similar services or security so...

I think it should work in all recent Outlook versions. I don't know if it's possible to automate Windows 10 Mail application.

You can disable the option in Preferences/General/Run FastKeys on startup.
You can also disable FastKeys temporarily - File/Pause.
You can deactivate FastKeys modules in Preferences/Module Activation.