Make the Automator Action Installer Not Hide Apps

From MacOSXHints: “Apple’s Automator Action Installer template (available from Apple’s Installation Instructions for Developers page) is the recommended way to ship custom actions, and it works pretty well. However, one annoyance is its tendency to hide active apps when it runs. Luckily, the fix is easy.”

1. Right- or control-click on the installer package, and select Show Package Contents from the pop-up menu.
2. Navigate to Contents/Resources/Scripts, and open main.scpt in the Script Editor.
3. Comment out the line that starts with set visible of (every process whose.... In the version of the installer I have, this is line 34.
4. Save the script.
5. Open applications should now no longer mysteriously disappear when the installer runs.