SunShine can be tried out without installing it,
like this...

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

However, to properly install SunShine...

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.

BEGINNERS:  You have to know something about computers to
install a tutorial.  However, you need the tutorial in
order to know something about computers.  No tutorial can
overcome this paradox.  Therefore, the best way for
absolute beginners to get a tutorial running is to ask
somebody to do it for them.