This document provides an overview and getting started guide for Symantec Protection Engine for Cloud Services. It describes what the software is used for, including providing content scanning and URL filtering capabilities to applications on IP networks. It also covers why virus protection is needed for web proxy/caching environments, how the software protects against threats in messaging environments through technologies like signatures, heuristics, container file decompression, and automatic updates. The document concludes by listing some of the new features in the latest version of Symantec Protection Engine.