Windows Form and Web Form test clients will not be generated if a service interface contains nested input field groups. If nested input groups are detected, a message to that effect will be displayed in the Output Window, and the Windows Form and Web Form clients will not be generated.
Each group field (i.e. field containing subitems) in a Java interface must have a name that is unique across all operations of that interface. Where this is not the case, client generation may fail.
If you encounter an error message >>> COBOL Interface generation failed Could not find a part of the path <path> when generating test clients for service interfaces, the likely cause is that Microsoft Internet Information Server (IIS) is not installed on your system. See Net Express Software Requirements