PC Paintbrush for Windows 1.05
Released in 1987 by ZSoft/Microsoft
For Windows 1.x and 2.x

This is the version of ZSoft PC Paintbrush for Microsoft Windows that
runs under both Windows 1 and 2. PC Paintbrush for Windows is a
bitmap drawing program, that evolved in to Windows Paint. This
Windows version was included with some special bundles of Windows 2.

This archive contains one 720k floppy disk image.

Note about interchanging PCX files with other programs: This version
of Paintbrush creates 8-color (3 plane) PCX files using only the
Windows 1.x/2.x EGA pallet. Other software may not be able to import
this format, or may get the pallets wrong.

It can import 16-color (4 plane) PCX files from newer software, but
the image's pallet must match the 8-color EGA pallet.

The first 8 colors should be:

R G B
-------
0, 0, 0
0, 0, 255
0, 255, 0
0, 255, 255
255, 0, 0
255, 0, 255
255, 255, 0
255, 255, 255

And the remainder should be unused.

Similarly, if other software gets the pallets wrong while importing, 
replace the pallet with the above values.