Window is in source code form, and no fee is charged for it.  However,
no support is given either; i.e., if a user chooses to use it, he
should be willing to make any enhancements he feels are necessary
himself.

First is a short Turbo Pascal (version 1) program, demonstrating the
windows.  Second is the source code for the bios extension.  To use it,
assemble the BIOS extension and convert it to a COM file WBIOS.COM.
(I.e., assemble it, run it through the linker, and use EXE2BIN.)
Then give the command

	A> WBIOS

and it will install itself in memory.  Thereafter, you issue commands to
it via the normal display I/O call in the IBM BIOS; WBIOS will intercept
the call, process it if it is a window function, otherwise pass control
to the ROM BIOS for processing.

J. Eric Roskos