How to configure and use EWS Impersonation on Exchange 2010/2007?

We can refer to the below mentioned articles for configuring and using EWS impersonation for the Exchange 2010:

• Configuring Exchange Impersonation (Exchange Web Services)
  http://msdn.microsoft.com/en-us/library/bb204095.aspx

• Using Exchange Impersonation XML Request/Response
  http://msdn.microsoft.com/en-us/library/bb204088.aspx

• Using Impersonation in EWS Managed API
  http://msdn.microsoft.com/en-us/library/dd633680(EXCHG.80).aspx

And here are the links for configuring and using EWS impersonation for the Exchange 2007:

• Configuring Exchange Impersonation (Exchange Web Services)
  http://msdn.microsoft.com/en-us/library/bb204095(EXCHG.80).aspx
  
• Using Exchange Impersonation (Exchange Web Services)
  http://msdn.microsoft.com/en-us/library/bb204088(EXCHG.80).aspx
  
• ExchangeServiceBinding Class : Code Sample
  http://msdn.microsoft.com/en-us/library/exchangewebservices.exchangeservicebinding.aspx

Hope this helps!!!