Hi, I think you have not created any web application yet that's why you are getting this error. As far as i remember if there is no web application in central admin and if we click blocked file type then we get unknown error. Go to you central admin and create at least a one web application. Here is the link to create web application: http://technet.microsoft.com/en-us/library/cc287954%28office.12%29.aspx Hope it could helpCheers, Hemendra-MCTS "Yesterday is just a memory,Tomorrow we may never see"

While clicking on the link called blocked file type i am getting a error called unknown error