To further describe the issue I had with Z and oem-7:

With HKN set up as follow roughly as follow:
<KeyList MyList A-Z, Oem2-8 except Z,

Pressing the oem-7 (which is marked "Z" on my Logitech keyboard would get me a "z" in a chat window in WOW but not trigger the "forward" command (as arrow-up would do) or any macro connected to
But ALT + oem-7 Would trigger the macro or move forward !!!

<KeyList MyList A-Y, Oem2-6,oem8 thus works