This document discusses the end of support for Windows XP in April 2014 and provides recommendations for organizations that have not yet upgraded from Windows XP. It notes that 33-50% of enterprise organizations still rely on Windows XP. Upgrading is recommended over paying expensive support fees after the deadline. However, many organizations are reluctant to upgrade due to application incompatibilities and user disruption. The document recommends using tools like RES Workspace Designer and Citrix AppDNA to discover applications and compatibility issues. It also suggests using virtualization technologies like Citrix XenApp and XenDesktop to deliver applications remotely and minimize user disruption when transitioning from Windows XP.