On Sat, 8 Nov 2003 16:46:28 -0600, you wrote: >> dyn.load("test1.so") > >> is.loaded(symbol.For("test1.so")) > >[1] FALSE > >> > >What am I doing wrong, please? In symbol.For, use the name of the Fortran subroutine, not the name of the DLL. Duncan Murdoch