64 Bit MASM Memory Mapped File test piece.

[hutch--]

Its easy enough to test out, unzip the file in its own directory, run more than 1 instance, whatever you type in one will be displayed in the rest.

When I get around to it, I will do another couple, one in 32 bit MASM and the other in PowerBASIC. It is fundamentally a good technique in both directions, using a 32 bit app from 64 bit and vice versa, extend a 32 bit app or from 64 bit using an existing 32 bit app.