Sending a file over HTTP with XUL

Hi all,

    While browsing thru the newsgroup, I noticed a message entitled:
Re: downloading a file via HTTP w/ XPCOM and JS

    Is it also possible to post files via 'multipart/form-data' or some
other methods (direct sending of raw bytes), directly to the server?

    The problem I am facing is, I tried to use nsIScriptableInputStream
For this purpose. Unfortuncately, I can't simple send an entire stream
without
processing it, as calling the read command and sending resulting binary
Bytes to be truncated ( '\0' signifies the end of string ).

    So I wonder if I can simple send a file over without resorting to
nsIScriptableInputStream, but perhaps some other XPCOM components

Regards,
    Kok Hoor