C# OS Loader lock Visual Studio 2010

Question

In VS 2008 when I try to step into the

return new Triangles(element, mesh);

line, I get the following error the first time

DLL 'C:\Windows\assembly\GAC\Microsoft.DirectX\1.0.2902.0__31bf3856ad364e35\Microsoft.DirectX.dll' is attempting managed execution inside OS Loader lock. Do not attempt to run managed code inside a DllMain or image initialization function since doing so can cause the application to hang.

After the first time stepping through the code, I do not get any warnings and everything works great.

In 2010 when I get to the same line, the program hangs on the first time through (just like the warning states can happen in 2008)

There are no DirectX calls that I am aware of around this area. How can I better debug this issue and what do I need to do to resolve it?

Thanks

• Answer - Hopefully this will help some other people. I was able to get my solution in VS 2010 to work like the VS 2008 solution by creating an app.config file.

  <startup useLegacyV2RuntimeActivationPolicy="true">
      <supportedRuntime version="v4.0"/>
  </startup>
  

Answer 1

That's a known problem with DirectX... from 2004.

Install the latest version of the DirectX SDK and you should be good to go.

Answer 2

<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0"/>
</startup>