Poco General FAQ - Starting Poco from a web browser

Q: I cannot send mail from a mailto: link in a webpage. When I attempt to, an error message pops up saying that it cannot find poco.exe,-1. I have searched my computer, even after upgrading to the latest version, but cannot find poco.exe,-1.
Try re-registering Poco as the default mailer, open the Program Options window (Shift+F7) and press the "Make Default" button (on the "General Options" tab).