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Problem

Solution

Tools for identifying the reason for this error.

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1. at command line prompt running as administrator: IISReset

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Make sure the trust level for the web application is "Full".

For example, for Adams Admin:

IIS > Server > Sites > Default Web Site > Adams Admin > .NET Trust Levels > Full

Select Apply

Other tools that help when an assembly cannot be loaded.

1. Fuslogvw - shows where assemblies are found during the load process
2. Process Monitor - helps find missing dependencies
   1. Filters:
      1. Process Name = w3wp.exe
      2. Path ends with <name of dll>
   2. Helpful article
3. Security Policies for application pool user and machine
   1. Local Security Policy
   2. gpresult /s localhost /z
4. check memory and processor availability
5. Process Explorer - use on a machine that works to see the dependencies for the failing DLLshows assemblies loaded for a process
   1. View > Select columns > Process Image > User Name
   2. View > Select columns > .NET > Assemblies
   3. Select w3wp.exe process > right click > Properties > .NET Assemblies

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