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EMS Software, LLC

Additional Information

Use Application Pool Identity for Service Account

Rather than inputting the PAM Account credentials on the PAMConfig.aspx page, credentials can be maintained at the Application Pool level. This allows your organization to maintain absolute control – only IIS applications running in the newly created application pool can run as the PAM Account.


This functionality requires the following:

  • Microsoft Exchange 2007 (SP1) or Exchange 2010.
  • Microsoft Exchange Impersonation Account (PAM Account).  This account must be using Impersonation, not full access to the mailbox store.


To configure the Application Pool

  1. Open IIS Manager
  2. Open the Application Pools panel
  3. Click Add Application Pool…
  4. The Add Application Pool window opens.  Enter a unique name and ensure .NET Framework v2.0 is selected.  Managed pipeline mode should be Integrated.  Click OK
  5. Find the Application Pool you just created.  Right-click it and select Advanced Settings
  6. The third section in the list is Process Model.  Highlight Identity and then click the (...) button to configure.
  7. Choose Custom Account and then click Set.  Enter the username and password for your PAM Account.  Confirm the password and click OK on any remaining dialogs (see screenshot below)



  1. Within IIS Manager, navigate to the Virtual Directory containing the PAM Web Service.  This is under the Default Web Site by default, but may be installed to a different web site. 
  2. With the PamWebService Virtual Directory highlighted in the left pane, select Basic Settings… under Actions in the right pane.
  3. Click the Select… button and then choose your newly created application pool from the list.
  4. Click OK on all remaining dialogs.


To configure Plan-a-Meeting to use the Application Pool account

  1. Navigate to the PAM configuration area by opening a browser and entering the following:

http://[ServerName]/PAMWebService/PAMConfig.aspx (replace [ServerName] with the name of your web server)

  1. From the Account Info tab, find the Authentication Information section, check the box for “Use application pool identity when authenticating to calendaring service”  (see screenshot below)
  2. With this option enabled, you can leave blank the Username and Password fields in the Authentication Information section.
  3. Click the Save button at the bottom of the page.