Thank you for the information, Peter! Yes. The server attempts to generate HTML based on the contents of the msi/cab files. Adding the mime mappings to the server/xxx/deploy/jboss-web.deployer/conf/web.xml file did resolve this issue. This addition is a bit too general, though -- we would have to regression test all applications running on Jboss. The web.xml file suggests that there is a way to configure mime mappings on a per application basis. However, adding the same mime mappings to the web.xml file located in the application WAR does nothing. Do they mime mappings have to reside exclusively in the server/xxx/deploy/jboss-web.deployer/conf/ directory to take effect? Thanks, again! View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4238891#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...