1    /BACKGROUND

   AXP Only...

   /[NO]BACKGROUND

   Synonymous with the /SINGLE_WINDOW and /WINDOW qualifiers. See
   the PEEK Commands DISALLOW Subtopic: /SINGLE_WINDOW.

2    /KEYS_ERASE

   /[NO]KEYS_ERASE

   Controls whether any existing hot-key definitions are also erased as
   part of a DISALLOW command.

   Example: $ PEEK/DISALLOW/NOKEYS_ERASE

   All previously granted PEEK/ALLOW permissions are revoked, but any
   hot-keys defined via previous PEEK/ALLOW commands are retained.

   The default value is taken from the logical USER$KEYS_ERASE, usually
   defined system-wide by PEEK_DEFAULTS.COM.

3    /SINGLE_WINDOW

   AXP-Only...

   /[NO]SINGLE_WINDOW

   Used with NDC's MultiSessions product on AXP to determines whether
   the DISALLOW command applies to the MS Server of the process which
   issues the DISALLOW command, or to the individual MultiSessions
   NDC-terminal windows from which the command is issued.

   Use DISALLOW/NOSINGLE_WINDOW to disallow someone to watch your MS
   Server process. This disallows the watcher from follow you as you
   switch between individual NDC-terminal windows.

   Use DISALLOW/SINGLE_WINDOW to disallow someone from watching only
   the single NDC-terminal window from which you issue the command.

   /SINGLE_WINDOW is synonymous with /BACKGROUND and /WINDOW.

   The default value for a DISALLOW command is determined by the
   logical USER$BACKGROUND usually defined by PEEK_DEFAULTS.COM. You
   can override the default by using this command qualifier.

   Examples:

   $ PEEK/DISALLOW/SINGLE_WINDOW   ! Disallow all prior ALLOW
                                   ! permissions granted for watching
                                   ! your single NDC-terminal window
                                   ! from which this DISALLOW command
                                   ! is issued.

   $ PEEK/DISALLOW/NOSINGLE_WINDOW ! Disallow all prior ALLOW
                                   ! permissions granted for watching
                                   ! your MS Server process, and thus
                                   ! from following you as you switch
                                   ! between NDC windows.

4    /WINDOW

   AXP Only...

   /[NO]WINDOW

   Synonymous with the /BACKGROUND and /SINGLE_WINDOW qualifiers. See the
   PEEK Commands DISALLOW Subtopic: /SINGLE_WINDOW.