Changing windows

Question

This sounds very trivial to me but I couldn't figure it out.

I am trying to change to a different window in a windows application... I would use Response.redirect like when doing a web form and ASP.NET, but this is a windows form.

So any advice or examples on how to change forms would be awesome, also when changing forms do you have to pass over objects or do they stay created since it is only a web form?