- Licence manager
- Offline activation
- Application signing licence
We offer two main alternatives to the conventional licensing mechanism, which is tied to per PC based on its MachineID (unique identifier for every PC) Concurrent licensing - Your application requests a license for a user defined period of time (say 8 hours to cover a day of work) and at the end of it, releases that licence for the next day or another instance of your application to claim it.
This is a new licensing model to deal with environments such as AWS where the hosted servers where they constantly change their machine ID (which is tied to the licence) and as a result the licence activated becomes invalid; which has becomes a problem for developers to re-activate the licence on their customers’ system. To try to avoid such nightmare and reduce the amount of admin and paper work, we have set up a new way of how licence and licence activation is controlled and invoiced.
Installed licences can be deleted in different ways as described in the following steps: Programmatically You could do something like this from your code: NET (c#) DicomLicense.DeactivateOnline(CustomerInfo1, CustomerInfo2) COM (VB6) Dim lg As New DicomLicenseGlobal lg.CurrentLicense.DeactivateOnline(CustomerInfo1, CustomerInfo2) XDS (C#) XdsLicense.DeactivateOnline(CustomerInfo1, CustomerInfo2) CustomerInfo1 & CustomerInfo2 are useful fields which are passed to our accounts department to inform them of which machine has been deactivated. Use our Licence manager tool You could download the sample project from our examples page, the Licence Manager project is a simple GUI that runs the above commands:
It’s possible and very easy to customize our DicomObjects.NET licence activation dialog: You can download the sample C# LicenseDialogCustomization project to see how each control on the licence dialog can be renamed/removed, including text labels, text boxes, buttons and logo.
Before DicomObjects can be used on any machine (physical or virtual), a list of unique MachineIDs is generated and used in the licensee activation process. To generate a machine ID that can best (uniquely) identifies a machine, we gather various system information, for example: Hard drive info MAC Address Operating System info > ‘(Only Applicable to Operating Systems that are older than Windows Vista)’ Adding new hardware Adding new hardware would not break the installed DicomObjects licence, as long as the existing hardware remain.
All current versions of our products, include a means to licence “bulk copies” of the toolkits (DicomObjects or XdsObjects) - e.g. when used by trusted customers for use on CDs etc. This is a replacement for the previous “strong name” based licencing, which had multiple drawbacks. To use this facility, which we call “applicaiton signing”, developers develop as normal (using a developer key), then get a “signature” for the executable by submitting it, alongside their special “signing key” (of the form wwww-xxxx-yyyy-zzzz) using a small local signing program, which sends the hash of the executable to our servers, where the licence information is added, the whole thing is “signed”.
Application signing is the process of validating a compiled program to use DicomObjects in association with a *.lic licence file which is specific to that executable. This .lic file is placed adjacent to the program to be executed which contains this executable specific licences for using DicomObjects or XdsObjects. This avoids any online/offline activation of DicomObjects or XdsObjects for running that program. Two main usage of a signed exe is when an application is installed on an offline machine without Internet access and/or system that doesn’t need to have DicomObjects licence installed.
This page describes the initial steps you could follow to troubleshoot a licensing problem. The flowchart given below is a simple diagnostic route to identifying the actual problem. Links to the tools and articles that is mentioned in the diagram above: Licence manager project can be downloaded from: (We have compiled binaries and sourcecode available for download) DicomObjects.COM DicomObjects.NET Instructions for Activating and Deactivating licences can be found here
If you’re planning on doing a ClickOnce deployment of your product, here are few simple instructions to include DicomObjects licence (*.lic) file within your deployment package: 1. Create a dummy “applicationname.exe.lic” placeholder and include in your solution. 2. Change the Build Action property of your \*.lic in VS to Content type. 3. Change Copy to output directory setting to Copy if newer. 4 Set your post build event as: * 4.