According to this microsoft page: http://msdn.microsoft.com/en-us/library/bb762153%28VS.85%29.aspx the third parameter (filename) is mandatory but in wapi_shellexecute it is not... HB_PARSTR( 3, &hFile , NULL ), _______________________________________________ Harbour mailing list (attachment size limit: 40KB) Harbour@harbour-project.org http://lists.harbour-project.org/mailman/listinfo/harbour