Windows 7 USB/DVD Download Tool
Full user review
"Using Your Bootable USB"
After tial & error, works well
Convoluted description on how it works - can be misleading.
Does work as advertised though it's explaination is wanting. IMPORTANT: When booting from the resulting USB device, make sure it's the only USB device available on the system, else it may not be recognized and you may think the process did'nt work.