You cannot install UNICOM Intelligence Desktop on a computer where UNICOM Intelligence Interviewer - Offline for Windows or UNICOM Intelligence Data Entry is already installed. If you try to install UNICOM Intelligence Desktop on top of an existing application, you will be prompted to remove the other application. The UNICOM Intelligence Desktop installation contains the UNICOM Intelligence Interviewer - Offline for Windows/UNICOM Intelligence Data Entry application. Uninstalling the existing version, and installing the version from the UNICOM Intelligence Desktop media, should not have any adverse effects on existing system data.