The DirectConnect interface uses a DLL named PBDIR110.DLL to access a database through either DirectConnect or Open ServerConnect.
Required DirectConnect versions To access a DB2/MVS database through the access service, it is strongly recommended that you use DirectConnect for MVS access service version 11.1.1p4 or later.
To access a DB2/MVS database through TRS, it is strongly recommended that you use DirectConnect TRS version 11.1.1p4 or later.
For information on DirectConnect for MVS and TRS, see your DirectConnect documentation.