According to the docs, I added the following codes in web.xml <filter> | <filter-name>Seam Multipart Filter</filter-name> | <filter-class>org.jboss.seam.servlet.SeamMultipartFilter</filter-class> | </filter> | | <filter-mapping> | <filter-name>Seam Multipart Filter</filter-name> | <url-pattern>*.seam</url-pattern> | </filter-mapping> but when I run project, server could not find org.jboss.seam.servlet.SeamMultipartFilter. I unziped the seam lib files, and I also did not find the class. I use Seam CVS20070214. Anybody can give some direction? Thanks. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4017012#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...