WebClient 403 Forbidden

Question

I can download this by hand in IE.

http://scholar.google.com/scholar.ris?q=info:j8ymU9rzMsEJ:scholar.google.com/&output=citation&hl=zh-CN&as_sdt=2000&

Answer 1

You need to set appropriate http headers before calling your DownloadFile method.

WebClient webClient = new WebClient();
webClient.Headers.Add("???", "???");
webClient.Headers.Add("???", "???");
webClient.Headers.Add("???", "???");
webClient.DownloadFile(address, filename);

To put correct values instead of these question marks might be tricky. You will need to download Fiddler or some other program or webbrowser extension to reveal what http headers are being sent to Google by your webbrowser and basically replicate the same request in your program.