[VB.net] Solvemedia Captcha via Httpwebrequest emulate javascript

Please fix my project.

The solvemedia captcha is always wrong. Even when the captcha input is correct.
It seems like the ccheck value is calculate on javascript basis but httpwebrequest does load javascript
Seems like we have to emulate the javascript to get a correct ccheck value.

Requirements for coder:
- Professional in httpwebrequest (Post)
- Professional in Javascript
- Professional vb.net developer

For a professional developer this task might not take longer than 15 minutes.

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Thanks