I\'ve build a WCF Service to accept a file and write it to disk. The front-end consists of a page with SWFUpload which is handling the upload on the client side. Apparently,
What you want to use is probably MTOM, if you want it to be standard. Using this, you can have MIME multiparts messages.
You then have to read the file as a stream and stuff it into one of the parameters of the request.