I have suggestion for further development of the Serialization library. VC++ does not recognise if the project has the generation of the RTTI enabled or not. It took me 2 hours to figure out where is the problem in my program until I have used the what() member in the std::exception. It could be avoided if a simple macro is added. Additionally I do not know where the exception xml_archive_exception is defined. I have found a documentation on the website of the developer who created the library but I cannot figure out in which header it is defined. Thanks a lot for help, Pshemek -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.