Mac OS 10.2.6 enforces user, group, and guest file permissions on carbon application users. If user "Bob" saves a file with a FB3 carbon application, user "Ted" cannot change or delete it because  the default is that only the owner has read and write permission. 

How best to save files so other users can have write permission?

I tried executing the unix umask command but it had no effect on fb3 "open" command when creating a new file. Must I do a unix chmod after every time I save a file to allow others to write to it?

Bruce Moore