Fixing the msshrtmi.dll issue on Windows Server 2012 in Azure


As part of a startup task, I sometimes have to install programs that are not part of the Azure role. For instance, I have a monitoring system that logs ETW and perf counter events. My intention is to keep this as a separate Windows service so that it’s not in the same process as my worker role. This has worked just fine up until moving to Windows Server 2012. Now I get this error:

Unhandled Exception: System.TypeInitializationException: The type initializer for ‘Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment’ threw an exception. —> System.IO.FileLoadException: Could not load file or assembly ‘msshrtmi.dll’ or one of its dependencies. A dynamic link library (DLL) initialization routine failed. (Exception from HRESULT: 0x8007045A)
   at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.InitializeEnvironment()
   at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment..cctor()
   — End of inner exception stack trace —
   at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.get_IsAvailable()

If you get into a situation similar to mine, the fix is simple. Add the following to the exe.config file:

<configuration>
  <startup useLegacyV2RuntimeActivationPolicy=”true”>
    <supportedRuntime version=”v4.0″ sku=”.NETFramework,Version=v4.5″ />
  </startup>
  <runtime>
    <NetFx40_LegacySecurityPolicy enabled=”false” />
  </runtime>
</configuration>

Comments (3)

  1. Paul says:

    useLegacyV2RuntimeActivationPolicy="true"

    Genius! I also have a small exe running as a startup task and hit this problem when updating to 2012 in Azure. Thanks Dustin.

  2. Brad Sarsfield says:

    Thanks! That did the trick!

  3. Patrick Butler Monterde says:

    Works like a charm! Thanks!