I'm trying to write a bot in .NET and running into issues logging into Twitter. I don't want to use the Twitter API but make it look like someone is logging in normally via their browser. I'm passing all the cookies in and all the form values. I've watched all the data going back and forth using Fiddler to make sure I'm getting all the form field values but I keep running into a 417 Expectation Failed error. Anyone know of a code example of how to programatically log into Twitter?