DQI3 Installation instructions: - Download and extract the file "DQI3_1.0.0.0_setup.zip". - Run "DQI3_1.0.0.0_setup.exe". - Note: DQI3 requires .NET FramewOrk 4.0. If it is not available in your PC, setup will download it and install it. Installation of .NET Framework 4.0 may take several minutes.