Hi Gary..
If your ARX file are on a Network folder...
(if (vl-string-search "64" (getenv "PROCESSOR_ARCHITECTURE"))
(arxload
(strcat arch#dirl "ARCH\\SUPPORT\\V_18\\acetutilx64.arx")
)
(arxload
(strcat arch#dirl "ARCH\\SUPPORT\\V_18\\acetutil.arx")
)
)
Otherwise...I think you don't have to..
you can also split the 32 and 64bits PAth...
and add it on the AutoCAd search Path directory...to use
(findfile...
Note tha I use
(getenv "PROCESSOR_ARCHITECTURE") because "C:\\Program Files (x86)" can be renamed from user if they have write permission.