Agora estou usando o FTPDMIN , que não é ideal devido à falta de segurança, mas para meus propósitos (testes de unidade) está bem.
Simple ad-hoc file transfer Windows FTP server.
ftpdmin v. 0.96 Jun 7 2004
Using 'C:\' as root directory
ftpdmin ready to accept connections on ftp://192.168.0.101
220 Minftpd ready
USER anonymous
331 pretend login accepted
PASS [email protected]
230 fake user logged in
SYST
215 WIN32 ftpdmin v. 0.95
PWD
257 "/"
TYPE I
200 Type set to I
PASV
227 Entering Passive Mode (192,168,0,101,5,178)
CWD /
250 CWD command successful
LIST
150 Opening connection
226 Transfer Complete
PASV
227 Entering Passive Mode (192,168,0,101,5,178)
SIZE /bottles.jpg
213 18003
MDTM /bottles.jpg
213 20040509122422
RETR /bottles.jpg
150 Opening BINARY mode data connection
226 Transfer Complete