An enlistment object represents a resource manager's enlistment to a transaction. Before a resource manager can receive notifications about a transaction's events, the resource manager must call ZwCreateEnlistment to create an enlistment to the transaction.
KTM provides a set of enlistment object routines that kernel-mode resource managers can call. KTM also provides a similar set of user-mode routines that user-mode applications can call. For more information about the user-mode routines, see the Microsoft Windows SDK.
KTM creates an enlistment object when a resource manager calls ZwCreateEnlistment to enlist in a transaction that the resource manager has received (typically from a transactional client).
Resource managers close their handles to enlistment objects by calling ZwClose. If the last handle is closed before the associated transaction object has been committed, KTM sends TRANSACTION_NOTIFY_ROLLBACK notifications to all the resource managers that have an enlistment for the transaction.
The operating system deletes the object after the last handle is closed and KTM has released all its references to the object.
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