HyperCard 1.2.1: Multilaunch Limitations Under AppleShare

HyperCard 1.2.1 on an AppleShare File server is a multilaunch application only if HyperCard and its Home stack are in a folder with read-only access.

If HyperCard is launched by a user with read/write access, HyperCard cannot be run by another user.
This has not changed with the new versions of AppleShare.

As long as a stack is locked, the stack can be accessed from a file server by more than one user. Neither HyperCard or the stacks are multiuser, and stacks cannot be written to by more than one user at a time.
Published Date: Feb 20, 2012