The request parsing will be written to always use bytes in the future, but for the moment it does not always. However, it uses bytes when the `enctype' of the HTML form is given as "multipart/form-data" [1]. You can simulate this by producing the appropriate HTTP header in your POST request, although you'll have to change `post-impure-port' to do so. I can write up a small example if this is not clear. Jay 1. <a href="http://www.ietf.org/rfc/rfc2388.txt">http://www.ietf.org/rfc/rfc2388.txt</a> <div>On 5/15/06, Jepri <<a href="mailto:jepri@babylon.alphacomplex.org">jepri@babylon.alphacomplex.org</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi all, I'm having a little trouble moving a "binary" file from a HTTP client program to a HTTP servlet, both written in PLT scheme.  I can upload files fine until I send a "binary" file which contains incorrect UTF-8 codes (e.g. an executable file).  It looks like the web server is interpreting my data as a UTF-8 string because the data I get in the servlet is a string with some bytes like *FF* replaced with question marks.  The relevant code I am using is: client: (post-impure-port full-url my-bytes) and on the server I'm trying to get at the bytes with servlet: (define start initial-request)    (request-bindings/raw initial-request)    ... and that nearly works.  So my questions are... can I persuade the PLT server to give my servlet raw bytes instead of a UTF-8 string?  Is there a different web server I could use that would just hand me a port instead of a data structure?  How could I do a HEAD request from the client?  The docs only mention get-xxxx-port and post-xxxx-port, I couldn't find head-xxxx-port anywhere. And on a completely unrelated note, how do I get the type of a variable? (display  ... ) seems to know, but I can't find the right command in the manual. Thanks in advance, Jeremy _________________________________________________   For list-related administrative tasks:   <a href="http://list.cs.brown.edu/mailman/listinfo/plt-scheme">http://list.cs.brown.edu/mailman/listinfo/plt-scheme</a> </blockquote></div> -- Jay McCarthy <<a href="mailto:jay@cs.brown.edu"> jay@cs.brown.edu</a>> <a href="http://jay.makeoutcity.com/">http://jay.makeoutcity.com/</a>