+The \q{Public key for pasting into authorized_keys file} gives the
+public-key data in the correct one-line format. Typically you will
+want to select the entire contents of the box using the mouse, press
+Ctrl+C to copy it to the clipboard, and then paste the data into a
+PuTTY session which is already connected to the server.
+
+See \k{pubkey-gettingready} for general instructions on configuring
+public-key authentication once you have generated a key.
+
+\S{puttygen-load} Reloading a private key
+
+\cfg{winhelp-topic}{puttygen.load}
+
+PuTTYgen allows you to load an existing private key file into
+memory. If you do this, you can then change the passphrase and
+comment before saving it again; you can also make extra copies of
+the public key.
+
+To load an existing key, press the \q{Load} button. PuTTYgen will
+put up a dialog box where you can browse around the file system and
+find your key file. Once you select the file, PuTTYgen will ask you
+for a passphrase (if necessary) and will then display the key
+details in the same way as if it had just generated the key.
+
+If you use the Load command to load a foreign key format, it will
+work, but you will see a message box warning you that the key you
+have loaded is not a PuTTY native key. See \k{puttygen-conversions}
+for information about importing foreign key formats.
+
+\S{puttygen-conversions} Dealing with private keys in other formats
+
+\cfg{winhelp-topic}{puttygen.conversions}
+
+Most SSH1 clients use a standard format for storing private keys on
+disk. PuTTY uses this format as well; so if you have generated an
+SSH1 private key using OpenSSH or \cw{ssh.com}'s client, you can use
+it with PuTTY, and vice versa.
+
+However, SSH2 private keys have no standard format. OpenSSH and
+\cw{ssh.com} have different formats, and PuTTY's is different again.
+So a key generated with one client cannot immediately be used with
+another.
+
+Using the \q{Import} command from the \q{Conversions} menu, PuTTYgen
+can load SSH2 private keys in OpenSSH's format and \cw{ssh.com}'s
+format. Once you have loaded one of these key types, you can then
+save it back out as a PuTTY-format key so that you can use it with
+PuTTY. The passphrase will be unchanged by this process (unless you
+deliberately change it). You may want to change the key comment
+before you save the key, since OpenSSH's SSH2 key format contains no
+space for a comment and \cw{ssh.com}'s default comment format is
+long and verbose.
+
+PuTTYgen can also export private keys in OpenSSH format and in
+\cw{ssh.com} format. To do so, select one of the \q{Export} options
+from the \q{Conversions} menu. Exporting a key works exactly like
+saving it (see \k{puttygen-savepriv}) - you need to have typed your
+passphrase in beforehand, and you will be warned if you are about to
+save a key without a passphrase.
+
+Note that since only SSH2 keys come in different formats, the export
+options are not available if you have generated an SSH1 key.
+
+\H{pubkey-gettingready} Getting ready for public key authentication