To test applications by using their active accessibility information, make sure that the following requirements are met:
The Microsoft Active Accessibility Support plugin is enabled in TestComplete. The plugin is installed and enabled automatically when you install TestComplete.
If you experience issues when working with applications by using their active accessibility information, make sure that the plugin is enabled in the File | Install Extensions dialog.
Needed windows and controls must implement the
IAccessible interface (it can be implemented automatically by the development tool, or manually by writing code that handles the WM_GETOBJECT message. See Implementing MSAA Support Manually).
The class names of the needed windows and controls must be specified in the MSAA Options of your project. For object, whose class names are not mentioned in this list, the MSAA functionality is off.