If you’re anything like me and are frequently called upon to help solve computer problems, you might be interested in UltraVNC SC, in which the SC stands for single-click. Configure the program with your details, send the 166k file to the person with the problem and in one click it initiates a connection to your VNC viewer and displays the remote desktop, helpfully avoiding all firewall problems at the other end. You configure it using a small utility and provide an IP address for connections, so a dynamic IP (edit: I meant dynamic DNS, as Nod points out in the comments) might come in handy. I haven’t actually tried it out yet, but it sounds more useful than bread. Spotted on the always enlightening Lifehacker.