For Vb compiling, on component I selected ADO Data COntrol 6.0, Common Dialog Control 6.0, Rich Textbox Control 6.0, Windows Common Controls 6.0 then using Vb application wizard to make application from northwind database, I follow the suggestion on screen till finish. On compiling , he showed compiling error: user-defined type not defined.
Please solve my probllem for me. On myself, I try to select some possible component but It didn't the right way, he showed the same error.

Best Regards,
Sanondh Brahmaphalin