I am planning to design new IDE

Question

Hi,
     I have a requirement to design new IDE. My client wants the toolbox, properties window and drag and drop properties of the controls which are presented in the FORM. All the things should happen in run time. Is it possible at run time? If possible can u tell me how it will be?

    That's the reason I am planning to design new IDE..... Is there any tool to design new IDE? Please help me in this issue....... From last 10 days I am struggling with this......

Thanks & Regards,
Gopi.