Polyhedron Licensing System
Polyhedron Licensing System (PLS) – Version 1.5
Polyhedron Licensing System (PLS) is a simple but flexible package for controlling the use of licensed software without the expense or inconvenience of “dongle” or licence server systems.
PLS gives software vendors the ability to specify “hard” and/or “soft” forms of copy protection. For example a “soft” protection scheme might display the licensee’s name when the program runs, so that the source of pirated versions can be traced. A “harder” scheme might involve checking that the program runs only when a particular hard disk is present.
In addition, PLS can be used to implement time-limited licences, for example for trial versions. Another option is to use PLS to enable selected facilities within an application.
PLS is extremely easy to use, both for the vendor and the end-user. Licences are contained in small plain text files which can be emailed, or even dictated over the telephone. The licensed software itself may be distributed freely, but remains inoperative (or restricted) until a valid licence file is found. Any attempt to tamper with the licence file is detected by PLS.
PLS is available for Windows 95, 98, NT, 2000 and XP systems. Object code versions are supplied for Intel Visual Fortran, Compaq Visual Fortran, Lahey LF95 and Salford FTN95. In addition a DLL version, callable from Visual Basic, Delphi and other languages is supplied.
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I had just upgraded to Windows 7, and after having Mathcad for several years I found that I could not complete the final stages of installation. After reading help files I finished up confused and really helpless, until I contacted you. THANK YOU.JD, Dorset, UK
Easy to book a place on the course, helpful staff at Adept. Very good introduction to the Endnote software, covered a wide range of topics. Knowledgeable on the Endnote program. Very helpful in answering any questions. Pace of learning was fine. Very good facilities.Ms N Calver, Manchester, UK
Very enthusiastic, willing to answer questions, helpful, friendly – overall very good
Thank you for your very efficient and prompt help. It is a pleasure to do business with switched-on companies like yours. Thanks to you I have ordered the product today via your WebStore.DM, Tain, UK
For the time being we are unable to offer the following product ranges although we are currently working hard to increase the number of products we can offer in the future. Please contact us to talk about alternative products that we may be able to offer you.