1 Introduction

The MSDTC Connection Manager: OleTx Transaction Protocol Logical Unit Mainframe Extension (DTCLU) provides transaction processing support to implementations of Logical Unit type 6.2 (LU 6.2). This extension is used between an implementation of LU 6.2 and a transaction manager. The DTCLU extension enables integration of a LU 6.2-based transaction participant into an OleTx transaction, and vice-versa. DTCLU extends the OleTx Transaction Protocol [MS-DTCO] with helper messages and abstract state, such as additional mechanisms for identifying a transaction, or support for recovery that does not use the presumed-abort two-phase-commit variant.

Sections 1.5, 1.8, 1.9, 2, and 3 of this specification are normative. All other sections and examples in this specification are informative.