Why does MATLAB 7.11 (R2010b) throw an error when I try to load a .NET Assembly from a network location?

When I use NET.addAssembly on an Assembly located on a network drive I receive the following error:

 ??? Message: Could not load file or assembly

 'file://\\myServer\myShare\ClassLibrary1.dll' or one of its

 dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)

 Source: mscorlib

 HelpLink:

Answer 1

[MathWorks Support Team]

This enhancement has been incorporated in Release (R2012a). MATLAB can now load network assemblies. For previous product releases, read below for any possible workarounds:

This is expected behavior caused by a security feature of the .NET Framework 4.0 which does not allow applications (by default) to load Assemblies from network locations.

To enable MATLAB to load Assemblies from a network location, you need to update the file

 $MATLABROOT\bin\[win32|win64]\matlab.exe.config:

You will need to add the following configuration options:

 <configuration>

   <runtime>

     <loadFromRemoteSources enabled="true"/>

   </runtime>

 </configuration>

As there already should be some content in this file, the resulting file should look like:

 <configuration>

   <startup useLegacyV2RuntimeActivationPolicy="true">

     <supportedRuntime version="v4.0"/>

     <supportedRuntime version="v2.0.50727"/>

   </startup>

   <runtime>

     <loadFromRemoteSources enabled="true"/>

   </runtime>

 </configuration>