Merge pull request #2717 from splunk/kopta_troubleshoot_dotnet_instrumentation

troubleshoot_dotnet_instrumentation - New issue added

Author: pkopta-splunk

gdi/get-data-in/application/otel-dotnet/troubleshooting/common-dotnet-troubleshooting.rst

@@ -245,6 +245,19 @@ To resolve this issue, :ref:`install the .NET instrumentation using the NuGet pa
 
 Alternatively, you can update to the latest version of .NET, as this reduces the likelihood of dependency version conflicts.
 
+Fixing Assembly Permissions IIS
+======================================
+
+When using the .NET Framework with an IIS-hosted application, you might encounter crashes with an event similar to the following:
+
+.. code-block:: bash
+   
+   [Exception] System.IO.FileLoadException 
+   [Message] "Loading this assembly would produce a different grant set from other instances."
+
+To resolve this issue, create a new ``DWARD`` value called ``LoaderOptimization`` and set its value to ``1`` under the registry key ``HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework``. 
+This allows different versions of the same application to load into different domains, though it might increase CPU and memory usage.
+
 Uninstall the instrumentation
 ======================================