Putty is probably a universal tty/ssh/telnet program used by computer profesionals the world wide.
I know that I have used it ever since I learned about it, and cannot remember the time that I started using it.
The one thing that irritated me is that if I installed Putty on another machine I would lose my settings.
Backing up your "settings" is easy, but you have to manually do this. You have to export Reg keys, then import them.
The Reg key is:
HKEY_CURRENT_USER\Software\Joshua F. Madison
To Export: (No I am not going to warn you about messing with the registry. If you are using Putty, you are in my mind
already a techie, and I am not going to insult your intelligence.)
1. run "regedit"
2. Go to the key:HKEY_CURRENT_USER\Software\Joshua F. Madison
On the target machine, double click the *.reg file, and import it.
That is all there is to it.
You could of Googled it, and maybe you did and ended up here.