Reset "open-with" list

Hello
i am wondering how i can reset the "open-with" list in finders context menu
Background: i am writing a small mac-application and based on the tests with old versions i do have my open-with list spammed with about 10 entries of the same programm (for each version one entry adding the version number)
I tried following this hint in apple docs:
http://docs.info.apple.com/article.html?artnum=305627
without success.
any other idea in mind ?
Best regards
fidel

This is from MacOSXhints.com:
http://forums.macosxhints.com/showthread.php?s=&threadid=25012
"I cannot remember where I got this from but all credits go to the original author:
If your "Open With" menu shows applications that are no longer installed, or shows some of them as duplicates, you can use the following Terminal command to rebuild your LaunchServices database:
/System/Library/Frameworks/ApplicationServices.framework/\
Frameworks/LaunchServices.framework/Support/lsregister \
-kill -r -domain local -domain system -domain user
just copy and paste into terminal and let it run
Or if you just want to shorten the Open With... then maybe this will help:
http://www.macosxhints.com/article.p...ery=info.plist
Keep this stored in a stickies or something, you would want to be able to find it again next time."
/p

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OK, I have now learned that Mac OS keeps the list of which apps to open what, in the "launch services database."
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http://discussions.apple.com/thread.jspa?messageID=1289317
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Hi -
This may be a question for Apple because it is a uniquely Apple Finder problem.
Or maybe some clever 3rd party Apple developer will take this on - because this is an Apple Finder problem (hint).
Is there a way to shorten the "Open With" list that appears when I right-click on a file?
Heres why this is important to me.
1- I'm seeing multiple versions of the same app on the list, like Photoshop CS5, Photoshop CS5.1, Photoshop CS 5.5. I can't think of any reason why I would ever want to use an older version of Photoshop. And it's not only Photoshop or even Adobe products.
2- I see incorrect apps being suggested. If I right click on an Illustrator file I see that TextEdit is one of the choices. I get Photoshop as an option to open HTML files. I see BBEdit as an option to open JPEG files. These are bizarre associations. Why are they even on the list?
3- With so many irrelevant choices the possibility of selecting the wrong application increases and doing so is a waste of time and resources. Once I accidentally selected a text editor to open a JPEG. After about 3 minutes of RAM-sucking processing I got a huge file of jibberish text characters that was thousands of lines long. Waste of time!
I KNOW I'm not the only one with this question.
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baltwo - thank you for the expert advice.
I did as you instructed and the situation is better but I don't believe it's solved.
I still get 3 versions of Photoshop when I right click on a PSD. I also get Dashcode and Textwrangler - which are the oddest associations. All together I get 25 apps responding to "Open With" on a PSD. And this is an improvement.
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Reset "open-with" list

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