.BR doVMS ,
.BR doMSDOS ,
.BR doOS2 ,
+.BR doHVX ,
and
-.BR doHVX .
+.BR doATM .
Each of these is a Boolean resource, they all default to true, except
for doAtari, doBSD, doSparcLinux, and doHPPALinux, which are turned off
by default, because they're really not all that interesting looking