Enclosed in DOSLAUN.ZIP file are the following files:
LAUNCH.GEO - a sample DOS launcher to use as a template
LAUNCH_ED.000 - a GeoWrite file that explains the procedure
DOSLAUN.DOC - you're reading it!
In addition to these files you will need a HEX Editor program. I use the shareware prpgram HEXEDIT which is available on America-On-line separately. If you intend to try to launch a .BAT file that uses switches, you will also need the separate program BAT2EXEC, also available on AOL.
These are the tools, you supply the courage and effort, knowledge will follow on its own.