Hello, I want to send two web call requests in one time for a specific Image URL. I want to check the image size from Content-Length. If they match that considered as Valid save Usernames to Valid.txt If they not match, It going to be skipped. If the image size value is: 22901, then rotate a proxy, then continue send 2 web calls to the next URL. I want to use WebClient not HttpWebRequest! I want it in multi threads, extremely fast. Proxy support. Pause, start, stop. Log history, Counter, [checked/Invalid/Valid] Nice GUI. Stable/reliable. Budget $80 payment freelancer only! Interested?, add me in skype: mzaboss I will give you more details.