Hello Guillaume,
Are you trying to add your class to the Microsoft Controls category of the Object Mapping settings? Actually, to make TestComplete recognize your control, you need to add its class name to the Edit box group of the Win32 Controls and Windows category.
To find out to which category of the Object Mapping settings your derived class must be added, you need to locate the category that contains the class from which your class derived.
The error message you got should have been more specific. We are going to fix it in one of the future product releases. Sorry for the inconveniences.
Please let us know whether you have any additional questions.
Thank you.
