[Python-3000] Install on Vista / AMD64 AthlonX2 platform

[Mark Hammond]

> Right. This prompt-at-execute-sequence behavior corresponds to bit 3
> being zero. However this means it will always prompt for elevation
> unless it is already elevated. Thus it is not really capable of doing
> a non-administrator per-user install on Vista.

Yeah - I stand corrected - a "per-user" install does indeed prompt for UAC.

Must-test-before-posting-rather-than-relying-on-memory ly,

Mark