DMCHECK a utility to check the version of DOOM, to check if the installed
version is registered or not, to verify the available free disk space and
to change the date/time of a file.

This will be usefull mostly for PWAD authors that want to make sure the
user has the proper DOOM version and that the files haven't been modified.

It works with ERRORLEVEL codes, so can be used in batch files.

by
Jean-Serge Gagnon <az589@freenet.carleton.ca>  or  (613) 791-0785