The FlexClient helper library is shipped along with TestComplete and allows you to perform automated testing of Flash and Flex applications providing the best possible access to applications' internals. In order to test your application using the FlexClient library, you need to include the FlexClient library in your application to make it testable. You can do that while compiling the application.
The following topics provide detailed instructions on how you can compile your Flash or Flex application with the FlexClient library in different IDEs:
Compiling Flash and Flex Applications in Adobe Professional IDE
Compiling Flash and Flex Applications in Flash(Flex) Builder IDE
See Also
Preparing Flash and Flex Applications for Testing with the FlexClient Library