WAITASEC (and SCROLL)                  Charles Petzold
          Command(s)                    PC Magazine Vol 4, No 24
		Copyright 1985 Ziff-Davis Publishing Company
          ______________________________________________________

          Purpose:  Uses the single-keystroke ScrollLock key to
                    halt a fast-scrolling display; then allows
                    you to scroll backwards, recalling previous
                    screens.

          Format:   WAITASEC     (loads memory-resident program)
                    <ScrollLock>             (activates command)

          Remarks:  WAITASEC is a memory-resident program that is
                    normally loaded through your AUTOEXEC.BAT
                    file.  Thereafter, alternately pressing and
                    releasing the ScrollLock key will halt and
                    restart a scrolling display, e.g., a lengthy
                    DIR listing.

                    While holding down the ScrollLock key to
                    freeze the display, if you also press one of
                    the cursor movement keys (Home, Up Arrow,
                    PgUp, End, Down Arrow, or PgDn), the display
                    will not resume scrolling when you release
                    the ScrollLock key.  Thereafter, the Up and
                    Down arrow keys move the display by one line,
                    the PgUp and PgDown move it by 25 lines, and
                    the Home and End keys take you to the
                    beginning and end of the stored screen
                    memory.  Pressing any non cursor key at this
                    point deactivates the stored mode, and the
                    original scrolling resumes.

                    Notes:

                    1.   WAITASEC will not work with an 80-column
                         color/graphics display if an unmodified
                         PC-DOS ANSI.SYS has been loaded.  (The
                         ANSI.SYS that comes with various
                         versions of MS-DOS does not cause
                         problems with WAITASEC.)  To run with
                         IBM's ANSI.SYS, make a copy
                         (MODANSI.SYS) of the original ANSI.SYS
                         and use DEBUG to patch the copy as
                         follows:

                         DEBUG MODANSI.SYS
                         E 29D 90 90
                         E 2A1 90 90
                         W
                         Q

                         Put the modified MODANSI.SYS in your
                         CONFIG.SYS file in place of ANSI.SYS.

                    2.   Because of the way they handle TTY
                         output, certain EGA cards will not
                         permit WAITASEC to scroll backwards.
                         This problem can often be cured by
                         adding MODANSI.SYS, as above.

                    3.   WAITASEC does not save your current
                         display screen.  To save your current
                         display, before beginning a scroll,
                         enter the complementary SCROLL command,
                         and everything on the screen will scroll
                         off the top and be captured in the
                         WAITASEC buffer.

                    4.   While WAITASEC has been found compatible
                         with XyWrite III (XYKBD.COM loaded) on a
                         PC AT, as with other memory-resident
                         programs, unforeseen hardware and
                         software incompatibilities may be
                         encountered.