hi, I am using the boost/program_options and i had no problem when using with Linux (and gcc). I switched to HP-UX ( using gcc 3.2.2) and the boost part fails to compile. I get a error from "boost/program_options/detail/convert.hpp" related to wstring and wchar_t usage. If someone uses program_options on HP with gcc already , could you please let me know what needs to be done to get it working. Thanks in advance --------------------------------------------------------------------------------------------------------- Suresh