Desaware Licensing System

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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.

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Desaware Licensing System V1.5

Our prices include ComponentSource technical support and, for most downloadable products, an online backup and a FREE upgrade to the new version if it is released within 30 days of your purchase.  All sales are made on our standard Terms and Conditions and subject to our Return Policy. Please contact us if you require any licensing option not listed above including volume licensing and previous versions.

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What’s new in Desaware Licensing System V1.5? - This new update provides significant improvements to the client components for the Desaware Licensing System, in particular with regard to support for licensing web applications and services.

• Flexible Storage of Licensing Certificates - Previous versions of the DLS only allowed storage of license certificates in disk files. With the version 1.5 client update, you can store license certificates in isolated storage (machine or user storage), or completely take over storage and retrieval of certificates. For example: you can now store a license certificate in a local database
• New WebCodeEntry Control - Previous versions of the DLS have included a windows forms based control for entering license keys. The version 1.5 client includes a new ASP .NET web control for entering license keys. This new control offers features similar to the existing CodeEntry control, and is AJAX enabled to provide rapid first-pass validation of codes as they are entered
• Increased Flexibility with System Identifiers - The DLS has always allowed you to define your own system identifiers - the values that are used to identify systems during licensing. However, previous versions always included the default identifiers as part of the comparison (unless you modified the comparison algorithm to ignore them). The version 1.5 update allows you to discard the default identifiers entirely
• New Web Application Licensing Example - The version 1.5 client update includes examples showing how to license web applications and services. The example illustrates use of the new WebCodeEntry control, and how you can license a web application based on domain and IP address, rather than by machine
• CodeEntryControl improvements - The version 1.5 CodeEntryControl component includes enhancements including the ability to paste installation keys directly into the control

Desaware Licensing System - The .NET 2.0 client and server components are now available. Now includes support for Visual Studio 2005

All versions of the client licensing component will be supported with the 2.0 and the latest 1.1 licensing server - so your existing and future applications will continue to work correctly with licensing servers running on both the 1.1 and 2.0 framework.

What's new in V1.1?

• New License Manager application. More powerful and easier to use.
• Support for NTLM authentication of management features.
• Improved security on demo installations - makes it harder to extend time by resetting the system clock.
• New component properties make it easier to embed and extract information from license certificates.
• New examples of module based licensing (licensing multiple features in a single application)
• New examples of subscription based licensing
• Includes obfuscator and binding check utility to help prevent reverse engineering.
• Improved diagnostics simplifies server configuration
• Improved support for running the activation server on hosted sites

Using unique security features in the .NET Framework such as strong named assemblies and XML signatures, the Desaware Licensing System relies on end to end cryptographic techniques, avoiding the use of hidden files, registry entries and other traditional licensing schemes.

A selection of the new features in this product include:

• Incredibly easy to use. Learn and deploy in minutes
• No hidden files, registry entries, or background services needed
• End-to-end cryptographic based, avoids the need for 'secrets', and makes it possible to offer an optional full source code license to the technology
• Cryptographic certificate licensing avoids the need to modify the client system
• Supports licensing of partial-trust components once the licensing component is installed on a client system. Ideal for 'no-touch' deployment and web deployment scenarios
• Allows a variety of security levels from high (activation required), to low (activation optional) - allowing it to be used even on systems without full time internet connections
• Optional Deferred server activation - allows installation without an Internet connection, with activation following when a connection is available
• Simultaneous product registration supported
• Cryptographic techniques allow binding to systems without compromising privacy
• Includes server management tools, and the ability to tie in to any Framework compatible database
• Use to license an unlimited number of applications at no extra cost

The Desaware Licensing System is itself licensed on a per-server/development system basis using its own technology.

• Flexible security: Optional server activation for maximum security
• Includes activation web service, with management application (with source)
• Activation web service runs on any IIS machine
• Timed demo installation supported
• System identification algorithm can be completely customized
• 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
• Encrypted connections to the activation server does not require SSL
• Tie into the database of your choice, or use the automatic defaults

The Desaware Licensing System is designed for per-machine licensing of applications or components. Installation codes are generated on a server for use during installation of Microsoft .NET Framework-based applications and components. During activation, the code is verified by the server before it issues a licensing certificate bound to the client machine. The Microsoft .NET Framework technology prevents techniques traditionally used to avoid licensing (modifying programs or substituting alternate licensing code). XML signatures prevent modification of the certificate, and certificates will only work on the machine for which they are created. The server controls how many systems each installation code supports, allowing for licensing multiple machines using a single installation code. The result is hardware quality security, without the use of external hardware.