[power-pro] question about env vars under 64-bit Windows

[quantiworks]

With PowerPro installed on 64-bit Windows, is there any need to check for
processor architecture when executing processes with env vars like the script
below?
Or is it unnecessary?

local PA = PROCESSOR_ARCHITECTURE

if (PA == x86) do
%programfiles%
elseif (PA == X64)
%ProgramFiles(x86)%
endif