координатор распредёлённых транзакций(A service, integrated with COM+, that makes distributed transactions work. DTC makes it possible to scale transactions from one to many computers without the need for special code)
координатор распределённых транзакций Майкрософт(A transaction manager that enables client applications to include several different sources of data in one transaction. MSDTC coordinates committing the distributed transaction across all the servers enlisted in the transaction)