Hi, Trying to work with REST protocol, using IIS 8, both client and server are Cache servers, I have the following problem-  When I send a PUT command, I get the following error: Length Required
## Length Required * * * HTTP Error 411. The request must be chunked or have a content length. Get , Post , Delete - work OK. This problem does not happen if I use Apache, so it's a IIS problem , not a Cache problem. Searching for solutions on google, this solution is popular- To fix this error, add an explicit content length to your request before making the API call. request.ContentLength = 0; So - using %Net.HttpRequest , how do I accomplish this? ContentLength is a calculated property . also, did you guys ran into a similar problem using REST ? Regards, Nael Nasereldeen