If not - get one and export your account/s to a file or/and manually write down the account codes and signatures.
Alternatively you could just set a movecharcode on your ship and move it on a new account (in case you won't play that character on your old PC anymore).
Good look, if you need any help using the software just let us know.
The best thing to do is export all your accounts then attach the file to an email and send it to yourself, that way you have 3 back ups of your accounts, one on each PC, and one in you email account.
Then you'll (virtually) never lose your accounts unless: both of your hard disks fail at the same time/your house burns down. And around the same time one of those unlikely events occur, google/hotmail's servers all blow up for some reas..... wait what the hell am i taking about?