In certain situations, ProBoard will display default .A?? files.

Just what is an A?? file?

All .A?? files are files that have the file extensions of .AVT, .AVP, .ANS, or .ASC. If the .ANS/AVT/AVP file cannot be found, the .ASC file will be displayed (if it exists).

Note: You have to insert your own “Press [Enter] to continue” prompt if necessary!

AFTERPW.A??    Displayed to a user after they have entered their password
BEFOREPW.A??   Displayed to a user right before ProBoard asks them for
               their password.
BIRTHDAY.A??   If a user logs in on his/her birthday, this file will be
               shown after the news file.
               Note: you can run a pex-file to congratulate a user on                      
                     his/her birthday.
DLDELAY.A??    Displayed to a user who has to wait <n> minutes before
               downloading. Refer to Configuration - Time/DownLoad Limits
               (F5) for more information on setting the number of minutes
               for the DownLoad Delay.
DLHANGUP.A??   Displayed to a user who has selected [G]oodbye after
               download, after the 10 second timer to abort the hangup,
               has expired.
DUPESFND.A??   Displayed to a user who uploads one or more duplicate
               files to your BBS if "Check Duplicate Uploads" is set
               to "Yes" in PROCFG's File Transfer Options.  The file
               will be displayed to the user once the duplicate check is
               completed if any duplicate files are found.
EVENTDUE.A??   Shown if a user can't login because of an event that has
               to run soon.
EXPIRED.A??    When a user's level has expired, this file is shown.
EXP_WARN.A??   Displayed when the user's level expires within less than
               30 days.
GOODBYE.A??    Displayed when the user is logging off, just before the
               carrier is dropped.
INTRO.A??      Displayed when a user logs in, BEFORE asking a user's name
               and password.
INTRO<n>.A??   This is the same as INTRO.ASC/ANS except that this file
               that can be displayed to the specified node number.  For
               Example: to display it to node 2 you would create a file
               called INTRO2.A??.  If no INTRO<n>.A?? exists, ProBoard
               will then show the file INTRO.A?? or LOGO.A??
MAXPAGE.A??    Displayed when the user has tried to page the SysOp too
               many times.
MSGHELP.A??    Replaces the built-in message reading help if this file
               exists.
NEWS.A??       Displayed AFTER the user has read his/her new mail.
NEWUSER.A??    Displayed to user before ProBoard asks "Are you a New
               User?".  When the user enters their name and ProBoard does
               not find their name in the user file, ProBoard asks "Did
               you enter your name correctly?"  If the user indicates
               they did, this file (if you create it) will display to the
               user.
NEWUSER1.A??   Displayed when a new user is logging in, BEFORE he/she has
               started the questionnaire.
NEWUSER2.A??   Displayed when a new user is logging in, AFTER he/she has
               completed the questionnaire.
NOACCESS.A??   Displayed when user is not allowed to log onto one or more
               lines because their access level is lower than the one
               specified in the command line PROBOARD -L<level> (used to
               start ProBoard on that node).  Read the "Reference
               Section" of this manual, under "Command Line Options &
               Errorlevels" for more information on this command line.
NOTAVAIL.A??   Displayed when the user tries to page outside paging hours
PAGED.A??      Displayed when the SysOp does not respond when the user
               tries to page.
PRIVATE.A??    Is displayed when your system is configured as a private
               system, and a new user tries to log in.
SECxx.A??      'xx' stands for a userlevel. If a user with level xx logs
               in, this file will be displayed (eg. SEC25.ANS). The file
               is shown after all WELCOME<x> files and before the
               mailcheck.
TRASHCAN.A??   Shown when a user tries to use a name listed in
               TRASHCAN.CTL file.
WELCOMEx.A??   Displayed at login, after the user entered his/her name.
               The 'x' stands for a digit ranging from 1 to 9; these
               files (if they exist) will be displayed in ascending
               order, 1-2-...-9, BEFORE a mailcheck is done.