DVX
===

DVX is a graphical desktop for DOS: windows, a Program Manager, a File
Manager, a Notepad, a Terminal, DVX BASIC and more.


What you need
-------------

  * DOS on a 386 or newer (486 recommended, Pentium for the best speed)
  * A video card with VESA BIOS Extensions 2.0 or newer (linear frame
    buffer); a VESA driver such as UNIVBE works with older cards
  * 4 MB of extended memory (8 MB or more recommended)
  * A two-button mouse and its DOS driver
  * About 10 MB of free space on the hard disk


Installing
----------

From the CD: change to the CD drive and type SETUP, for example

    D:
    SETUP

From floppy disks: put Disk 1 in drive A: and type

    A:
    SETUP

Setup shows the licence, asks for the folder to install DVX in (C:\DVX
unless you change it), checks the free space and unpacks DVX. With
floppies it asks for each disk in turn. Setup can also add a line to
AUTOEXEC.BAT so DVX starts with the computer; it shows the line first and
keeps a copy of the old file as AUTOEXEC.DVX.

Setup never writes to the CD or the floppy disks.


Upgrading or repairing
----------------------

Run Setup again and choose the same folder. Setup asks whether to keep
your settings (the CONFIG folder); say Yes to upgrade or repair DVX and
keep them.


Removing DVX
------------

Run SETUP.EXE in the DVX folder (for example C:\DVX\SETUP) and choose
Uninstall. Setup removes the files it installed and, if you ask, your
settings; files you added yourself stay. It can also take the DVX line
out of AUTOEXEC.BAT.


Starting DVX
------------

Type C:\DVX\DVX (or the folder you chose). If DVX cannot use the
display mode in its settings, hold down Shift while it starts, or type
DVX /SAFE, to start it in 640x480.


Unattended install
------------------

    SETUP /AUTO=C:\DVX [/LOG=C:\SETUP.LOG]

installs without asking (the licence is taken as accepted, settings are
kept on an upgrade, AUTOEXEC.BAT is not changed). The exit code is 0
when DVX was installed.


DVX is free software under the MIT licence (see the licence in Setup).
Copyright 2026 Scott Duensing.