https://learn.microsoft.com/it-it/dotnet/api/system.servicemodel.dispatcher.dispatchoperation.releaseinstanceaftercall?view=netframework-4.8.1
DispatchOperation.ReleaseInstanceAfterCall Property (System.ServiceModel.Dispatcher) | Microsoft...
Gets or sets a value that specifies whether to recycle the service object after a call.
property systemdispatchermicrosoft