Form created in e.g. AX 2012 RTM or AX 2012 R2 with ManagedHost control on its design fails to open on AX 2012 R3

Applies to AX 2012 R2 & AX 2012 R3

Consider the following scenario:

When a form is created in e.g. AX 2012 RTM or AX 2012 R2 and a ManagedHost control is added on its design,

like "Microsoft.Dynamics.AX.Framework.Client.Controls.ChartToolBar".

Then when the form is deployed on a newer AX version, e.g.  AX 2012 R3 environment,

 the form no longer opens but throws the following exception:

Could not load file or assembly 'Microsoft.Dynamics.AX.Framework.Client.Controls, Version=6.2.0.0,
Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies.
The located assembly's manifest definition does not match the assembly reference.

(Exception from HRESULT: 0x80131040)

To resolve the above addressed issue, please do as follows:


Adding new assembly bindings into Ax32.exe.config to redirect 6.0.0.0 and 6.2.0.0 references to 6.3.0.0 assembly.

Here is what precisely you need to do:

-Shutdown your AX client

-Find the “Ax32.exe.config” file under your Client\Bin directory, normally under

 “C:\Program Files (x86)\Microsoft Dynamics AX\60\Client\Bin”

-Edit the file in Notepad and add the following assembly binding (Highlighted in yellow).

-Save the file, but please make sure to keep it in the original format

-Start AX client and try your scenario 

The Ax32.exe.config file content will look like the following after the changes:

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

　 　 <startup useLegacyV2RuntimeActivationPolicy="true">

　 　 　 　 <supportedRuntime version="v4.0.30319" />

　 　 　 　 <requiredRuntime version="v4.0.30319" safemode="true"/>

　 　 </startup>

　 　 <runtime>

　 　 　 　 <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

　 　 　 　 　 　 <probing privatePath="EditorComponents"/>

　 　 　 　 　   <dependentAssembly>

　 　 　 　 　 　 　 　 <assemblyIdentity name="Microsoft.Dynamics.AX.Framework.Client.Controls"

                                                                   publicKeyToken="31bf3856ad364e35" culture="neutral" />

　 　 　 　 　 　 　 　 <bindingRedirect oldVersion="6.0.0.0-6.2.0.0" newVersion="6.3.0.0" />

　 　 　 　 　 　 </dependentAssembly>

　 　 　 　 　 　 <dependentAssembly>

　 　 　 　 　 　 　 　 <assemblyIdentity name="ste-net" publicKeyToken="5542884f620dbde5" culture="neutral" />

　 　 　 　 　 　 　 　 <bindingRedirect oldVersion="1.0.1.59-1.0.1.80" newVersion="1.0.1.80"/>

　 　 　 　 　 　 </dependentAssembly>

　 　 　 　 </assemblyBinding>

　 　 </runtime>

</configuration>