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Desaware Licensing System [1.2]


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Add a cryptographic licensing system to your .NET apps. The Desaware Licensing System is a cryptographic based licensing system for .NET. Designed for per server/machine and component licensing, it is extremely easy to use and can be configured for both moderate and high security scenarios. With 128 bit end to end cryptographic licensing, the Desaware Licensing System does not depend on hidden files, registry entries or other invasive techniques.

General Features
  • Licenses all types of .NET apps, including web services, ASP.Net apps, server side controls and, of course, Windows applications.
  • Includes activation web service, with management application (with source).
  • Timed demo installation supported.
  • Activation web service runs on any IIS machine, including most hosted sites.
  • Incredibly easy to use. Learn and deploy in minutes.
  • Tie into the database of your choice, or use the automatic defaults.
  • End to end cryptographic security eliminates the need for "secrets".
  • Supports .NET 1.1 and .NET 2.0

Flexible Security, from light to cryptographically strong

  • Allow installation/unlocking purely based on a product key (no Internet connection required), or require server activation for maximum security.
  • Optional Deferred server activation - allows installation without an Internet connection, with activation following when a connection is available.
  • Strong security can be implemented using Email or CD/Floppy exchange as well as Internet connections.
  • Encrypted connections to the activation server does not require SSL.

Licensing Components and Distributed Applications

  • LicenseProvider support offered for components - but not required.
  • Once the client component is installed in the GAC or installation directory, supports licensing of partially trusted software.

Customization Features

  • System identification algorithm can be completely customized. Decide if two systems match exactly, or how close two systems need to be to be considered identical.
  • Include custom data in the data sent to the server. This can be used to include product registration as part of the license activation.
  • Send server data back to the client. Data is digitally signed to prevent modification.
  • Licensing data implemented using XML
  • Add your own assemblies to respond to new or modified activations.

The licensing system is easy for developers to use - all the information needed for an application can be stored into a .resx resource file that can be simply added to the licensed application.

  • Works with Windows forms applications, ASP.Net applications, web services, Windows services and components.
  • Supports demo, simple installation and server based activation licensing schemes.
  • Includes the redistributable licensing component, licensing server and management functionality.
  • Highly configurable and can be integrated into your own back-end systems.
One software license is required per machine.
There are two parts for the Desaware Licensing System. A "Client" used by the developer to add licensing to the .NET assembly, and a "Server" that verifies the licenses. Each part may be installed separately on one machine. Additional Client and Server licenses may be purchased.
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