Open With showing duplicate apps in finder
For those of you that use the Apple Mac App Store to download apps and are running into the issue of seeing your applications show up multiple times in the "Open With" command in the finder. This invoked by holding control + clicking an item in the finder and choose the "open with" choice.
I saw another large thread and didn't find an easy answer so I thought I'd post the solution that worked for me:
1 - Launch Terminal. This can be done by holding command key and hitting space bar and then typing terminal.
2 - In Terminal paste the following text and hit return:
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.fram ework/Support/lsregister -kill -r -domain local -domain system -domain user
3 - After Terminal comes back tot he ready prompt you can quit Terminal.
4 - Relaunch finder by holding the Option key + clicking on the Finder Icon in your dock.
You can now verify that you only see one version of each appliction by selecting an item in your finder window and holding the control key and clicking on it to see what items are listed in the "Open With" choice.
Hit like if it solved your problem.
Thanks to Tom Nelson and his "Rebuild the Launch Database" article.
http://macs.about.com/od/usingyourmac/qt/remove-duplicate-applications-from-open -with.htm