The Display Driver Compatibility Test (DCT) verifies the robustness and correct operation of a display driver and its supporting virtual display device, standard-mode grabber, and 386 enhanced-mode grabber. You can run the tests as standalone tools during the development and debugging stages of your driver, or you can start the tests using the CT shell. The CT shell is a Windows application that starts the tests, keeps track of test results, and provides an onscreen report.
For a complete description of the tests and an explanation of how to use them, see the DCT.DOC file that you installed with the DCT.