This document provides instructions for installing and using the OmniPCX Enterprise PC Installer V2.26 software. It describes how to install versions, patches, Linux on inactive partitions, and binaries on OmniPCX Enterprise Releases 5.1.x, 6.x and higher. The installation is performed using the setup.exe file and involves selecting options like installation type, call server type, and network configuration. The document also provides details on uninstalling, managing servers, and known restrictions for the software.