With this simple script you can avoid these embarrasing "404 not found" error messages to your visitors. If you have to move an old script or replace it with another one, just rename 1-URL Keeper file to whatever was the name of the old script, and your visitors will start to use your new script even if they bookmarked only the old one. The script passes all the CGI variables to the new script, so that you don't loose new script's functionality. All the calls for your old script are logged, so you can see who is still linking to your old script and let them know.