Hi, Can we specify that we only preserve custom tags/trees that occur in the root of the object? Preserving unknown tags/trees within a child tree creates a maintainability nightmare. Best regards Joon Radley Radley Network Technologies CC Cell: +27 (0)83 368 8557 Fax: +27 (0)12 998 4346 E-mail: joon at radleys.co.za