basnyat ji thank you. gbs84, you gave me the precise answer i was looking for. Unfortunately i have to pose you more questions. I have only developed some forms using windows based Oracle9i DS. Now, what's the difference between Oracle9i DS forms builder and f60gen form builder? Do you have all those layout design view, graphics... menus.. canvas and everything in f60gen? or it's totally different in f60gen? About the second one, i have only used windows based sql*plus. I guess no one use that in real world. TOAD is only for creating plsql commands, or objects or it has feature of forms builder as well? I hope i am not asking you too many questions.