\dd Enable SSH compression.
-\dt \cw{-i} \e{path}
+\dt \cw{-i} \e{keyfile}
-\dd Private key file for user authentication.
+\dd Private key file for user authentication. For SSH-2 keys, this key
+file must be in PuTTY's PPK format, not OpenSSH's format or anyone
+else's.
+
+\lcont{ If you are using an authentication agent, you can also specify
+a \e{public} key here (in RFC 4716 or OpenSSH format), to identify
+which of the agent's keys to use. }
\dt \cw{\-hostkey} \e{key}
}
+\dt \cw{\-sshlog} \e{logfile}
+
+\dt \cw{\-sshrawlog} \e{logfile}
+
+\dd For SSH connections, these options make \cw{plink} log protocol
+details to a file. (Some of these may be sensitive, although by default
+an effort is made to suppress obvious passwords.)
+
+\lcont{
+\cw{\-sshlog} logs decoded SSH packets and other events (those that
+\cw{\-v} would print). \cw{\-sshrawlog} additionally logs the raw
+encrypted packet data.
+}
+
\S{plink-manpage-more-information} MORE INFORMATION
For more information on plink, it's probably best to go and look at