There is no "official" answer that describes how many processes can be run
on an AppleShare File Server at one time. The AppleTalk Internet Router is
the only product that we have tested on an AppleShare File Server that is
running a foreground application (AppleShare Print Server). Based on this
information, three processes is the maximum that we have tested and
support.
On an AppleShare File Server, the AppleTalk Internet Router runs in the
background; it does not run as a foreground application. Because the
Internet Router runs in the background, you can run an AppleShare foreground
application on the same machine.