Sorry if this is the wrong forum for this question. :-\ My fortan works fine within Microsoft's C++ v6.0 :) But after loading Orcad v 9.2, the fortan help fails. The error message is 'attempting to use an invalid compiled help (.chm) file'. :'( The C++ help still works, but not the fortran help. ??? The only way to get the fortan help back, is to uninstall Orcad. ???