The FlashBack SDK has 3 possible methods of recording the screen. One of these methods is "capture driver" mode, which uses a video driver to capture screen changes in a very CPU-efficient way.
See About Record Modes for more on the advantages and disadvantages of each record mode.
To be able to record with capture driver mode, the driver needs to be installed first.
Note: installing the driver requires administrator level access rights to the PC, and a reboot may be required to complete the installation.
There are two methods of installing the driver:
Via a call to FBRecorder::InstallDriver. See Installing the Capture Driver via the FBRecorder class for details.
By running FlashbackDriverInstaller.exe, a program included in your SDK installation. See Installing the Capture Driver via FlashbackDriverInstaller.exe for details.
Because installing the driver requires administrative access, it may be more convenient for you to install the driver when installing the application (via the .exe) rather than at application run time (via the function calls).