Call a form from another form using call_form,open_form,new_form

Question

I HAVE TWO FORMS 1)KOPT_MODULE WHICH IS CALLED FORM
2)KOPT_SUB_MODULE WHICH IS CALLING FORM
IN KOPT_SUB_MODULE I HAVE ONE TRIGGER
1)WHEN BUTTON PRESSED
DECLARE
List_id ParamList;
BEGIN
List_id:= GET_PARAMETER_LIST('input_params');
IF NOT ID_NULL(List_id) THEN
DESTROY_PARAMETER_LIST(list_id);
END IF;
List_id := Create_Parameter_List('input_params');
     ADD_PARAMETER(list_id, 'emp_query', TEXT_PARAMETER, :MOD_ID);
CALL_FORM('KOPT_MODULE', NO_HIDE, DO_REPLACE, NO_QUERY_ONLY, list_id);
END;
IN KOPT_MODULE I HAVE ONE TRIGGER
1)WHEN NEW FORM INSTANCE
if :parameter.cparam_cond is not null then
     BEGIN
          set_block_property('KOPT_MODULE',default_where,:parameter.cparam_cond);
          --:SYSTEM.MESSAGE_LEVEL:='25';
          execute_query;
     END;
     END IF;
BOTH THE FORMS ARE AT SAME LOCATION "D:\Documents and Settings\Administrator\My Documents\PROJECT WORK"
I DON'T WANT TO USE CALL_FORM('D:\Documents and Settings\Administrator\My Documents\PROJECT WORK');
BUT WHEN I USE ABOVE TRIGGER A MESSAGE FRM-40010: CANNOT FIND FORM KOPT_MODULE
PL TELL ME ELABORATELY WHAT TO DO IN KOPT_MODULE FORM WHICH IS CALLED FORM
AND IN KOPT_SUB_MODULE WHICH IS CALLING FORM.
SHALL I WRITE ANY OTHER TRIGGER OR CHANGE THE CODE?
PL HELP ME TO SOLVE PROBLEM

Answer 1

First of all, stop shouting. Writing everything in uppercase is regarded as shouting.
Second, you didn't mention any version number, so please tell us your forms-version.
Depending on your version, you have to set the environment variable FORMS45_PATH, FORMS60_PATH, FORMS90_PATH or FORMS_PATH either in the registry or in your env-file.