title: What is the lifetime of an AppDomain in WCF?
body: <p>What is the lifetime of an AppDomain in WCF?</p>
  
  <p>Does it relate to InstanceContextMode, ConcurrencyMode and/or AspNetCompatibilityRequirements RequirementsMode?</p>
  
  <p>I'm looking to know how long my static variables will be around and how often they'll have to be recreated.</p>