Hi, > Is there an "stdc++" lib (libstdc++.so)? You are using Cygnus on Win32, > right? Yes. The class "string" is in "libstdc++.a". But this class also needs some references. Under Linux these references are in "libg++.so". BTW: Linux: libstdc++.so Cygwin: libstdc++.a (need "cygwin1.dll") bye Felix Kollmann, DG5PT Future Interactive email: fkollmann@gmx.net http://www.futureint.com