Be aware that loading the segment in exclusive-write mode will purge the existing segment, preventing any *subsequent* loading of the segment, read OR write. Existing users of the segment are unaffected.
He probably went out for lunch and Chucky grabbed the keyboard. I believe the above is not true (and we don't want it to be true).
If you write a '1' into 'shared' you get a copy of the original DCSS and can write into the memory. When you write a '0' into it before you issued the SAVESEG command you lose all the changes you made and you get the shared pages again. If someone else also obtained a non-shared copy to make changes and saved it, then my understanding is that you get the new segment in shared mode rather than the one you started with initially. That's probably what you meant to have.
Rob
