A simple form example:
POST /hyplan/sanders.html HTTP/1.0
MIME-Version: 1.0
Content-type: application/x-www-textform
name=test&address=data
A complex example (with an audio part):
POST /hyplan/sanders.html HTTP/1.0
MIME-Version: 1.0
Content-type: multipart/mixed; boundary="unique string"
--unique string
Content-Type: application/x-www-textform
name=test&address=data
--unique string
Content-Type: audio/basic
Content-Transfer-Encoding: BASE64
SDFLKjfllkjLKJhJHhjGjHGjHSJfhLSKDJFHjsdhfkJSDHFKSJH
--unique string--
--sanders