The HAC Glossary can be tried out without installing the full program,
like this...

From the DOS prompt:  Enter WIN HACGLOSS
From within Windows:  Run HACGLOSS.EXE

However, to properly install the HAC Glossary...

From the DOS prompt:  Enter WIN SETUP
From within Windows:  Run SETUP.EXE

The installation process will give you more information
before actually changing anything.

For detailed technical information about the HAC Glossary, see the
VENDINFO.DIZ file.