Serv-U

[ihav]

Serv-U is a powerful, easy-to-use, award-winning FTP server. An FTP server uses the FTP protocol to share files across the Internet. Serv-U is not only 100% compliant with the current FTP standard, but also includes numerous features unique to Serv-U that make it a perfect file sharing solution for virtually everyone. Regardless of the purpose behind your FTP server, everyone will benefit from the numerous security features Serv-U incorporates.

[Elsie]

For more information i want you to just refer this link and I am sure there will be further more information this small business server. actually Serv-U is used in the small business organization.