shin1_morita@yahoo.co.jp wrote: > [ Why doesn't dynamic_cast work when I dlopen a shared library? ] I think the right place for this question might have been gcc-help (http://gcc.gnu.org/ml/gcc-help/). Nevertheless, I think http://gcc.gnu.org/faq.html#dso should answer your question. - Dan -- Wine for Windows ISVs: http://kegel.com/wine/isv