Hi all, I have a test on the interop with other services, and found that the sample JSDL by the UVA .net implementation is not a valid JSDL file. The sample JSDL document has an extra <ActivityDocument> element as it's root element. In fact a JSDL document won't contain this element. Best Regards, Liang ZHONG Grid Computing Research Group Institute of Advanced Computing Technology, Beihang University Tel: +86 10 8231 6262 Fax: +86 10 8231 6796 Addr: Room 507, Building G,The New Main Building, 37# Xueyuan Rd., Haidian District, Beijing 100083, PRC