phonedialer.exe missing

[PACTAMAH]

Folks,

the phonedialer.exe file is nowhere to be found in my GSM Treo Pro. There is the cprog.exe in /WINDOWS/ directory which if executed invokes [Call History] on the screen. However I am more interested in the file (possibly the phonedialer.exe) that invokes the [Keypad] soft key that shows up only after the [Call History] has been called in.

I'd like to remap the left green hard button to [Keypad] instead of [Call History].

Does anyone have any idea what triggers the [Keypad] function?