com.sun.star.ucb.HierarchyContentProvider vnd.sun.star.hier com.sun.star.ucb.FileContentProvider file com.sun.star.ucb.WebDAVContentProvider http com.sun.star.ucb.WebDAVContentProvider vnd.sun.star.webdav com.sun.star.ucb.WebDAVContentProvider webdav com.sun.star.help.XMLHelp vnd.sun.star.help com.sun.star.ucb.FTPContentProvider ftp com.sun.star.ucb.PackageContentProvider vnd.sun.star.pkg com.sun.star.ucb.ExpandContentProvider vnd.sun.star.expand com.sun.star.ucb.TransientDocumentsContentProvider vnd.sun.star.tdoc com.sun.star.ucb.PackageContentProvider vnd.sun.star.zip com.sun.star.ucb.WebDAVContentProvider https com.sun.star.ucb.WebDAVContentProvider vnd.sun.star.webdavs com.sun.star.ucb.WebDAVContentProvider webdavs com.sun.star.ucb.ExtensionContentProvider vnd.sun.star.extension com.sun.star.ucb.CmisContentProvider vnd.libreoffice.cmis com.sun.star.ucb.ImageContentProvider vnd.libreoffice.image private com.sun.star.ucb.GIOContentProvider .*