How to connect SQL Server using TestComplete

TestComplete can use only 32-bit database drivers to connect databases. It does not support 64-bit database drivers. This is due to the fact that TestComplete is a 32-bit application, so it cannot load 64-bit modules into its process. Thus, in order for TestComplete to be able to access a database running on a 64-bit client machine, 32-bit database drivers must be installed on the machine.

If you use the Microsoft Open Database Connectivity Data Source Administrator tool to connect to a database on a 64-bit operating system, make sure that you use the 32-bit version of the tool, Odbcad32.exe (it is in the <Windows>\SysWOW64 folder). Otherwise, the tool will not be able to detect the needed 32-bit database drivers.