FTP servers in C

i have a client to connect to an FTP server and to send and receive files.

i have made a client using C code and its working fine.

everything is working perfectly except the GNU ftp server i downloaded.

The server doesnt allow my custom made client to use the command
"FtpSetCurrentDirectory"
because it returns an error every time.

does anyone know of a small GNU FTP server program (prepferrably Dos based) that i can use over a Lan connection.

i have tried BabyFtp and FTPadmin (the problematic one)
but BabyFtp isnt allowing annoymous logins.

any help appreciated.