Running MacOS applications under A/UX

[Daniel J. Oberst]

Having found a round-about way to get MacOS applications over to A/UX
(dragging the file over to a CAP/AUFS file server and then ftp-ing
the resource fork over to A/UX), I'm trying to see what works.  Next on
my list to try is MacDrawII.  Meanwhile has anyone come across an
application that complained that it needed "System 4.2 or later"?
What is the system compatibility of the toolbox under A/UX.  I have
NOT yet had my motherboard upgrade for my machine--were there ROM
upgrades in that that I should have?