README file for wearth, version 1.0
Erwin Yu <eyu@mailhost.net>
5 July 1996

WHAT IS IT?

    If you have used some X-Window system, you may know a X-application
    called xearth, written by Kirk Lauritz Johnson, it can be get
    from ftp.x.org.  I ported this program to 32-bit Windows platform
    ( Win95 or WinNT ) last year for my WinNT workstation, 
    I decided to let more users enjoy it now.

    Wearth sets the wallpaper of Windows 95 or Windows NT to
    an image of the Earth, as seen from your favorite vantage 
    point in space, correctly shaded for the current position 
    of the Sun, updated each 5 minutes by default. 

INSTALL

    Just put the file wearth32.exe to wherever on your disk and create
    an item in your Windows Startup group for it, you may need to set
    some command line options, for example:
	wearth32.exe -size "800 600" -wait 300
    see wearth.txt for more info.

NOTES

    Wearth is a 32-bit Windows apllication, so it will not run
    on Windows 3.x unless you have win32s installed.
    Set you time zone correctly! Or the earth displayed will not
    be shaded correctly for the current position of the sun.


LEGAL STUFF

    Copyright (C) 1995, 1996 Erwin Yu
    Copyright (C) 1989, 1990, 1993, 1994, 1995 Kirk Lauritz Johnson

    Parts of the source code (as marked) are:
      Copyright (C) 1989, 1990, 1991 by Jim Frost
      Copyright (C) 1992 by Jamie Zawinski <jwz@lucid.com>

    Permission to use, copy, modify and freely distribute wearth for
    non-commercial and not-for-profit purposes is hereby granted
    without fee, provided that both the above copyright notice and
    this permission notice appear in all copies and in supporting
    documentation.

    Unisys Corporation holds worldwide patent rights on the Lempel Zev
    Welch (LZW) compression technique employed in the CompuServe GIF
    image file format as well as in other formats. Unisys has made it
    clear, however, that it does not require licensing or fees to be
    paid for freely distributed, non-commercial applications (such as
    wearth) that employ LZW/GIF technology. Those wishing further
    information about licensing the LZW patent should contact Unisys
    directly at (lzw_info@unisys.com) or by writing to

      Unisys Corporation
      Welch Licensing Department
      M/S-C1SW19
      P.O. Box 500
      Blue Bell, PA 19424

    The author makes no representations about the suitability of this
    software for any purpose. It is provided "as is" without express
    or implied warranty.

    THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
    INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT
    OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
    NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
    CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
