<p>To my amazement I just discovered that the C99 stdint.h is missing from MS Visual Studio 2003 upwards.  I'm sure they have their reasons, but does anyone know where I can download a copy?  Without this header I have no definitions for useful types such as uint32_t, etc.</p>

Turns out you can download a MS version of this header from:
https://github.com/mattn/gntp-send/blob/master/include/msinttypes/stdint.h
A portable one can be found here:
http://www.azillionmonkeys.com/qed/pstdint.h
Thanks to the
Software Rambling
s blog.
NB:
The Public Domain version of the header, mentioned by
Michael Burr
in a comment, can be find as an archived copy
here
. An updated version can be found in
the Android source tree for libusb_aah
.