E4X is also available in Adobe Acrobat and Adobe Reader versions 8.0 or higher (notably[8] Forward Ported from SpiderMonkey version 17[9] and suggested may be dropped in the near future). E4X is also available in Aptana's Jaxer Ajax application server which uses the Mozilla engine server-side. Since the release of Alfresco Community Edition 2.9B, E4X is also available in this enterprise document management system.