BW> In mutil FileToss, if I have auto_create = true, is it possible to have
 BW> it *not* to append an actual prefix to the directory and data files of
 BW> the auto-created file base?
 BW> 
 BW> That is, can I use something like:
 BW> 
 BW> dir_prefix = /mnt/bbs/files/autocreated/

Have you tried it by chance?  I think you can probably do exactly that.  You would want to put the trailing slash on it like you have it above.

... Marriage is one of the chief causes of divorce

--- Mystic BBS v1.12 A47 2021/08/07 (Windows/64)