Just for those who haven't taken this walk, two of the three "splash" or
logo files are in C://Windows and named "logow.sys" and "logos.sys".  The
logow file is the "Windows is now shutting down..." file, and the logos file
is the "it is now safe to turn off your computer" file.  That one is almost
never seen if your computer shuts itself down, so there is little joy in
changing it.
    The format is simple- although they are "sys" files in extension, they
are in fact BMP images.  The format is simple- width 320, height 400, stored
as 8 bit optimized color.  The files will be 127K in size on the windows
directory listing, the actual sizes are 129,080 bytes each.
    Create your artwork in POVray or whatever in a 640x400 format (which I
added to my quick render settings) and once done, resample it to 320x400.
That's pretty easy to do in most art programs, or you can actually set
POVray to do it, I am sure.
    Once done, save in that 8 bit BMP format and copy to the proper
directory.  Using the DOS prompt, rename the original "logow.sys" file to
something like "logow.bak" and leave it alone.  Then rename your bitmap
image to "logow.sys" also in DOS to get the file extensions right.
    Then, when you shut down your machine, you will see your little artwork
instead of the typical stuff.

Cheers!

Chip Shults
My robotics, space and CGI web page - http://home.cfl.rr.com/aichip

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