Please review the Technical Documentation for full system requirements of the latest version of Toad for DB2
Toad for DB2 version 6.5
When connecting to a DB2 database/subsystem, ensure that you have a DB2 Client or IBM Data Server Driver installed. Toad supports DB2 Client versions 9.7.6 through 11.1.
Toad has been tested with the following versions of the DB2 Client: 9.7.6, 9.7.9 , 10.1.0, 10.1.2, 10.1.3, 10.5.0, 10.5.2, 10.5.3, and 11.1.0.
IBM DB2 for LUW 9.5, 9.7, 10.1, 10.5, 10.5.0.5, 11.1
IBM DB2 for z/OS 9, 10, 11, 12
Note: Toad may support IBM DB2 Express and SWE in addition to listed above servers, but note that no testing was performed on it.
Note: Windows 8, 10 and Windows Server 2012 require the following Fix Pack in order to ensure registration of DLLs in Global Assembly Cache:
IBM DB2 LUW 10.5 Fix Pack 4
IBM DB2 LUW 10.1 Fix Pack 4
IBM DB2 LUW 9.7 Fix Pack 10