DB2 UDB can be fully integrated with Microsoft Transaction Server (MTS) Version 2.0, as long as DB2 has FixPak 3 installed and MTS has Microsoft hotfix 0772 installed. Applications running under MTS on Windows 32-bit operating systems can use MTS to coordinate two-phase commit with multiple DB2 UDB databases (DB2 Version 2 or DB2 UDB Version 5, FixPak 3), as well as with other MTS-compliant resource managers. You can also connect to the following remote DRDA Application Servers: DB2 for MVS Versions 3 and 4, DB2 for OS/390 Version 5 or greater, DB2 for AS/400 Version 3.1 or greater, and DB2 for VM and VSE Version 5 or greater.