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,
@JasonS is right, to upload file you need to transfer it as a byte stream. You need to use WCF streaming. For example on how to upload file via WCF see an article from http://kjellsj.blogspot.com