hi,
i have a winforms app sending dime attachments to a WSE 2.0 web
service.  it reads a set chunksize of bytes of a file into a memory
stream > into the dime attachment > send to the web service.
the web service then reads the stream and appends the bytes to the
file.  it's a large file upload solution.
BUT... when the size of the bytes sent in the dime attachement is
between 48000 and 60000, it fails every time with HTTP status 400 bad
request.
if i go above or below those limits, by a lot or a little, it works
perfectly, every time.
i came across this by chance when i was experimenting the efficiency of
the algorithm with different size of chunks sent each time.

what the?!!

if anyone wants to see the source code i can send them the VS solution.

tim.
p.s. my maxRequestLength in httpruntime (machine.config) is 256000, as
is the microsoft.web.services2 > messaging > maxRequestLength value in
web.config.