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.

The Next Steps

What do our Customers say about us?

The new Quick Fit Gadget is fantastic and I absolutely love that I can output results to a worksheet so that I can get a column of a particular parameter on which I can do statistical analysis.

Greg Scott, University of Illinois at Urbana-Champaign

This was an excellent course which I feel sure will be extremely useful. I will certainly recommend the course to others. Tutor made the course very enjoyable. A born teacher – superb communicator

HP, Evesham, UK

Tutor was very knowledgeable and taught in a way that was easy to follow

KH, Uxbridge, UK

Excellent service received with queries I had when I had the trial EndNote. This was a factor which prompted me to go on to buy the product. An excellent service was received in response to a problem after the purchase of endnote.

JB, Manchester, 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.