\c -4 -6 force use of IPv4 or IPv6
\c -C enable compression
\c -i key private key file for authentication
+\c -noagent disable use of Pageant
+\c -agent enable use of Pageant
\c -batch disable all interactive prompts
\c -unsafe allow server-side wildcards (DANGEROUS)
\c -sftp force use of SFTP protocol