Subj : Ambiguity To : borland.public.cpp.borlandcpp From : yufufi Date : Thu May 27 2004 02:41 pm I am getting the error ComCtrls.hpp Ambiguity between 'Windows' and 'Excel_2k::Windows' I created a new form and put QRChart into it. I included the header of the form in another form to call ShowModal of the created form. I searched the web for the error. It seems that I can solve this problem with using namespaces ? But how ? I found these on the web http://www.cppbuilderdevjournal.com/articles/issues/9708/The_magic_of_namespaces.htm http://threads.borland.com/threads/threads.exe/thread?view=fulltext&refid=3666 Thanx, Furkan .