: Safely closes operating systems and saves open files before a battery dies.
: Through TCP/IP or the Internet, users can monitor their UPS status from off-site locations. Installation and CD Key (Serial Number) UPSilon2000 - Megatec
The difficulty lies in activation. Upsilon Software Inc. (now defunct) used a based on the CD's volume serial number. You could not simply install from a copied ISO; you needed the original 25-character alphanumeric key printed on the back of the CD sleeve.
Technical analysis suggests that UPSilon 2000 employs an online check for key validity: