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Browse Prior Art Database

Limiting Installation Based on Product License

IP.com Disclosure Number: IPCOM000112253D
Original Publication Date: 1994-Apr-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Anand, VK: AUTHOR

Abstract

Customers are expected to buy as many licenses for each copy of a software package that they need. But there is not anything that the software product prevents them from using one copy of the product (one license) on more than one machine. So a customer can pay the price for one license and use it on more than one machine.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 98% of the total text.

Limiting Installation Based on Product License

      Customers are expected to buy as many licenses for each copy of
a software package that they need.  But there is not anything that
the software product prevents them from using one copy of the product
(one license) on more than one machine.  So a customer can pay the
price for one license and use it on more than one machine.

      This disclosure explains a way to control this without
affecting the free usuage of the software in these situations.  Users
may want to reinstall the software on the same system for various
reasons.  Secondly, sometimes users may want to move the software
from one system to another system.  These types of free usage of the
software should be allowed.

      Free usage can be achieved by coordinating between the software
and ROM on the system.  When the product is installed, it puts a
signature in the ROM memory area and it locks the files in such a way
that the product cannot be copied or installed on any other system.
If the poduct has to be reinstalled, it checks for the signature in
the ROM area; if one exists the it reinstalls the product.  The only
way a customer can install in another system would be by removing it
from the system.  This will unlock the files and erase the signature
from the ROM.

      This report does not deal with the technical detail about how
this should be implemented, it just explains a way to protect from
multiple installation without buyi...