Hey all. I'm the developer of BPFTP Server/Client and I'm big into the USB/Flash-Drive thing.
To this end, I just released "BulletProof FTP Server Portable Edition" which includes an installer and Auto-Run support (as much as MS will allow prior to their Start-Key product later in the year).
Check it out, let me know if you run into problems at:
bpadmin [at] builtbp [dot] com
Download Link:
http://bpftpserver.com/products/bpftpserver/windows/portable/usb
I'm working on getting it to pass the tests, so it can be included here at PortableApps.com.
Thanks in advance,
- Matt