passing the limit of MaxRequestLenght

Question

Hello, sorry for my bad english ! I have problems wile uploading files. I am using a component, ABCUpload.net, the problem come when the file i send pass the value of the MaxRequestLenght on the webconfig. Passing the limit i receive "page not found". What can i do? I read that the only solution it's to create a custom error page from IIS. thats the only one ? another question, is it possible to resume an upload via http ? there is a component to do that ? Thanks for answers !