Access Exchange or Outlook Via IIS .Net Webpage

Hi, I'm looking for a solution to retrieving user information such as calendar events for a specific user and placing this into a .Net webpage. Specifically looking at upcoming calendar events and user contacts. I have followed Microsoft instructions here and here but I don't seem to have much luck as I recieve access denied.

Error Message
Sooooo I need to grant access but I dont know how. Many people seem to mention changing the COM security, but I am unsure which to alter.

Any help here would be amazing
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piemckayConnect With a Mentor Author Commented:
Issue was resolved by using Impersonation

<identity impersonat="true"/>

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and ensuring that Pipeline is set to Classic in application Pool
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