WebDAV Clients. Windows 2003 with SP2 cannot connect to WebDAV. See Microsoft - Software Update for Web Folders (KB907306) for full details of the manual updates that need to be made.

Java Versions. Generally, at least JRE 1.5 is recommended, as the following CQ WCM components or features require at least JRE 1.5:

If JRE 1.4.2 is required due to other project/deployment dependencies, the CRX core repository (crx-explorer_crx.war) can still run with this Java version. In this case, the Package Manager is not supported.

Java Distributions. The CQ WCM application requires only a Java Virtual Machine to run, which is provided by the Java Runtime Environment (JRE) distribution. Generally Day recommends using the Java Development Kit (JDK) distribution, which is a typical requirement of the Java application servers in which CQ WCM runs. Both JRE and JDK distributions are a part of the Java Standard Edition (Java SE).

Java Environment Suppliers. The IBM and HP Java environments are only supported on IBM and HP server platforms, respectively. For all non-IBM, non-HP platforms, the Sun JRE is supported.

Servlet API Versions. CRX Launchpad web development environment, based on Apache Sling, requires a servlet engine supporting Servlet API version 2.4. All other components of CRX, including the JCR repository and CRX web application, also work with servlet engines supporting Servlet API version 2.3.

Application Server Support. CQ WCM is expected to work with any modern application servers/servlet engines (that support at least Servlet API 2.3), including popular open source products like Jetty, Apache Tomcat, Apache Geronimo or Sun GlassFish. Day recommends stable, non-deprecated versions of these application servers (information available on supplier websites). For production use, Day offers optional support for these platforms.

QA Note. CQ WCM on IBM WebSphere 6 application server was tested with the IBM Java Development Kit (JDK) 1.4.2 under Linux.