input: [Category] Transactions [Description] In general, transactions and duplex callbacks do not mix well. Callbacks are usually one-way operations which cannot flow transactions, and transactional services are often single-threaded, which precludes flowing the service transaction to the client during a service call. However, the service can be configured for reentrancy and to disable releasing the instance once the transaction completes. Doing so will enable the service to flow its transaction to the callbacks. The service can also store the callback references for later use, in which case, as shown by The download, a service-side transaction can flow to the client. You will need to configure the callback client for transaction just as with a service. [Last Updated] 9/7/2006 [Title] 
output: Duplex Transactions