We have had a query from a customer saying that their software reverts to a trial version at some point and they have to close and re-open the software to fix the problem.  Any ideas why this should happen?  The text from their email is as follows:

Regarding our software, since the last update (I think) the software, after being open for a period of time, seems to revert to a Trail Version type mode where all my box text is replaced by “Trail Version”… I have to close and re-open file to restore. Also, in the upper left of the HTA window there is the text “MindFusion.Diagramming for Windows Forms, trial version” – this is present from the time I open to the file to when it eventually switches to Trial mode.. suggestions on how to rectify this?

Interestingly, we have never set this.  We have not upgraded for some time and are using version 6.4.1 of Diagramming for WinForms and we just have the line...

MindFusion.Licensing.LicenseManager.AddLicense("AQAAADkAAA.......

in our Main(string[] args) function.  This has been working for years!

DavidL

Could you give me some assistance with the two parameters required in CheckLicense().  There seems to be nothing the the help file.

DavidL

All our files are dated 5th June 2016.  Is this the correct date to use?  I ask because one of our clients has code with a licence check in as follows:

MindFusion.Licensing.LicenseManager.AddLicense("AQAA.....");

            if (MindFusion.Licensing.LicenseManager.CheckLicense(new DateTime(2016, 6, 6), "MindFusion.Diagramming.WinForms") != MindFusion.Licensing.KeyValidity.Valid)
            {
                MessageBox.Show(Resources.String_MindFusionNotLicensed, Resources.String_HFRMError);
            }

and the check has been triggered.

DavidL

The customer is a military one, so your first idea sounds correct. I have added the following to app.config

<dependentAssembly>
    <assemblyIdentity name="MindFusion.Licensing.dll"
      publicKeyToken="9d02e21d957ddaef"
      culture="Neutral" />
    <bindingRedirect oldVersion="1.0.1.24632" newVersion="1.0.4.38034"/>
  </dependentAssembly>

but I get the error:

Message               : Could not load file or assembly 'MindFusion.Licensing, Version=1.0.1.24632, Culture=neutral, PublicKeyToken=9d02e21d957ddaef' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Source                : MindFusion.Diagramming.WinForms
Stack Trace           :
   at MindFusion.Diagramming.WinForms.DiagramView.set_LicenseKey(String value)
   at HierarchicalTaskAnalysis.HTAForm.InitializeComponent()

Any ideas?

DavidL

Sorry, but that does not seem to work either.  I think that it's best to upgrade to the latest version of the software as our version is four years old.

DavidL

It's re-mapping the version number that does not seem to work. However, we have now updated to version 6.6 and the error does not seem to have re-occurred.

DavidL