1004:   <filename(modulename)>:'<symbol>' duplicated in
         <filename(modulename)>

     Explanation:  This message indicates that the name symbol defined as
     public in the first module is also defined as public in the second
     module.  This will occur if two procedures in separate .OBJ or .LIB
     files have the same name.  The first one found is the one which is
     linked into the program, and the second one is ignored.