Hello, I want to automate a website with the webbrowser control(.net) where I have to upload a file. This is the input element where I want to add the path: Code: <input class="file" id="file" name="file" type="file" /> SetAttribute or InnerText don't work. I read that this is because of security reasons. After Invoke("click") the default "select file" dialog open. And that stops the whole tool. And now I have no idea how to automate this. Of course I can run an other tool which send keys, but that is very bad and awkward. Besides i want to run my tool at the background. So do you have an idea? I have already searched a lot.. Thanks, I will add rep for the solution. Greetings! PS: Yes, because of javascriopt I need to use the webbrowser control and not httprequest.