I can start CustomMailer because it says I have another copy running. What do I do?
Check the Windows task bar at the bottom of your screen. You should see a copy of CustomMailer already running. If you really want to start a new copy of CustomMailer, you need to exit this previous copy of CustomMailer, then start up a new copy of CustomMailer. In rare cases, Windows may think CustomMailer is still running when it isn’t (such as if CustomMailer didn’t successfully exit or launch for some reason), so that you may not see a copy of CustomMailer in the Windows task bar. In this case, use Ctrl-Alt-Delete to bring up the Windows “Close Program” or “Task Manager” window. Look for a name like CustomMailer 4.0, CustomMailer 4.0 by Wildcrest Associates, CustomMailer-jrew.exe, or Java this window, select it, and then click on “Exit Task”. If all else fails, you can always reboot Windows, as this is certain to clear up the problem.