The development system comes in two flavors:
The distribution consists of a single, self-installing executable (InstallSICStus.exe) containing development system, runtime support files, library sources, and manuals. Note that the installer itself asks for a password, when started. This is different from the license code.
Installed files on a shared drive can be reused for installation on other machines.
SICStus Prolog requires a license code to run. You should have received from SICS your site name, the expiration date and the code. This information is normally entered during installation:
Expiration date: ExpirationDate Site: Site License Code: Code
but it can also be entered by starting sicstus from the Start menu (spwin.exe) and selecting Enter Licence from the Settings menu. Entering the license may require Administrative rights. Running SICStus should be possible from a limited account.