Hello,
As I said, everything is working, all my code works, as well in the client as in the browser. I get some fields filled in with user infomation. But when I sign the code in the form, and set the form library to allways use a browser, the fields are not filled in. When I not sign my code, I can still upload and activate it via admin, but when I want to open it in the client, it gives me an error.
So I think I'll have to choose if I want to use the client or the browser, but I cannot use both?