I had today several users reporting that a centrally shared addressbook had
suddenly disappeared from their addressbook folder. The mailbox owning this
addressbook showed it as "Deleted" for the respective users. Tried to remove
the users from the share list: to no avail, got failure msg "The instruction
at ... referenced memory at ... . The memory could not be "read"."
Several GWCheck runs did not rectify the problem, although the last runs
didn't show problems any more.
Also adding new users to the share list doesn't seem to be possible.
I'm pretty much in the blue now and grateful for any ideas. As the share
list is very long I'd hate to have to clone the whole book and then share
the new book.

Ulrich Eggert