Re-installing Mac Components

Can anyone tell me how to re-install a single MAC component, i.e. Mail or Calculator :?:

Try a search at Version Tracker for TomeViewer. It will allow you to get any component from a Tome (CD) and extract it.

Pacifist is a similar app for OS X.

Do you know where I can get Pacifist? I need to re-install the default MAC OSX Mail application. Somehow it disappeared. Am I on the right track here? Or could you suggest another approach.

Sure it’s at…

http://macupdate.com/info.php/id/6812