Sftp

http://www.openlogic.com/wazi/bid/188155/Installing-an-SSH-SFTP-Server-on-Windows
http://www.serverwatch.com/server-tutorials/working-with-ssh-and-secure-ftp-servers-in-windows.html
http://www.digitalmediaminute.com/article/1487/setting-up-a-sftp-server-on-windows
http://coreftp.com/server/index.html
http://www.k2sxs.com/silvershield/
http://www.kpym.com/2/kpym/index.htm
http://www.freesshd.com/
http://windsftp.weebly.com/
http://www.cerberusftp.com/
http://www.jscape.com/secureftpserver/index.html
http://weblogs.asp.net/steveschofield/archive/2010/08/06/winscp-command-line-sftp-and-automation.aspx
http://pigtail.net/LRP/printsrv/cygwin-sshd.html
http://www.pragmasys.com/FortressSSHServer.asp
http://www.freesshd.com/
http://www.bitvise.com/winsshd
http://www.enterprisedt.com/products/completeftp/overview.html
http://www.zftpserver.com/
http://www.wftpserver.com/
http://www.syncplify.me/
http://www.solarwinds.com/products/freetools/free_tftp_server.aspx