Author  Bruce Gavin
Intent  Search disk(s) for user file(s).
Usage   FIND [drive:] filename.ext [/H/S/V/N]

Origin  01JUN89   v2.beta Entirely rewritten for more performance.
        10JUN89   v2.beta Allow only DOS versions 2.0 to 3.x
        15JUN89   v2.beta Int24h DOS Critical Error Vector.
                          Force DOS buffer flush for diskette reads.
                          Default drive is 1st hard drive.
                          Allow redirection to printer or disk.
                          Add /S for single drive switch.
        18JUN89   v2.04   Floppy drive error will bypass that drive.
        23JUN89   v2.05   Deleted Int24h Critical Error Vector.
                          Any disk read error terminates program.
        07AUG89   v2.06   Reset vectors after error message display.
                          Fixed FAT 12/16 bit determination factor.
                          Add /V verbose path display switch.
        30AUG89   v2.06   Add checks for up to 32 sectors per cluster
                          for Zenith DOS 2.x.
                          Fixed full 64 byte path display terminator.
                          Fixed CLS blinking bug with MS-DOS 3.21.
        07SEP89   v2.06   Redirected output also displays on screen.
        02OCT89   v2.06   Add EMS support for path tables.
        08OCT89   v2.07   Add extended disk partition support.
        26OCT89   v2.08   Dynamically allocated data segments.
                          Prevent color 00h (black on black) video.
        23DEC89   v2.09   Corrected bad video page in CLS, which caused
                          phony colors in output.
                          Add color banners and window scrolling.
        03JAN90   v2.10   Corrected history file from v2.54 to v2.10.
                          Display subdirectories with inverse color.
                          Add /P full screen pause switch.
                          Corrected banner shadow.
        27JAN90   v2.11   Conditional assembly to support SNAPSHOT.
                          Support directories bigger than 64k.
                          Support 80x43 and 132x43 screen sizes.
        27FEB90   v2.11b  Fix screen length bug for Hercules video.
                          Fix active display page bug.
        05MAR90   v2.11c  Change pause switch to /N for no auto pause.
        25MAR90   v2.11d  Tone down banner colors to low intensity.
                          Scroll entire screen after each pause.
        11MAY90   v2.12   Fix DOS < 3 message display bug.
                          Fix split scrolling bug.
                          Prevent bad drive divide by zero.
                          Provide pause message for user, insure
                          extended scan codes are correctly handled.
        25JUN90   v2.12   Correct full-screen scroll off from ^C.
        11JUL90   v2.13   Bug fix, big partition HI sector address.
        05AUG90   v2.14   /S switch sets unspecified drive to default drive.