AutoHotkey Community

General tip: in WinXP, when a message box is displayed, you can try to hit Ctrl+C. It should copy the textual content to the clipboard.

I didn't analyzed the whole script, but I believe there is a typo: instead of
StringReplace, ch_%A_Index1%, %A_LoopField%, %A_Space%,, All
put:
StringReplace, ch_%A_Index1%, A_LoopField, %A_Space%,, All
The second parameter of StringReplace must be a variable name, not its content. I don't know how this bug has creeped in a tested script.
I didn't analyzed further, so try it and report if there are other problems.

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vPhiLho := RegExReplace("Philippe Lhoste", "^(\w{3})\w*\s+\b(\w{3})\w*$", "$1$2")

Thanks. The popup is gone now but chording with the second numpad script doesn't seem to work, while the normal non-numpad script works only with the normal keys.