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I want to downgrade to SL3 on my Mac after accidently installing SL4 Beta. I've tried the SL3 uninstall procedure:

rm -rf /Library/Internet\ Plug-Ins/Silverlight.plugin
rm -rf /Library/Receipts/Silverlight*.pkg
rm -rf ~/Library/Application\ Support/Microsoft/Silverlight

But still get an error message when I try to install SL3 saying there is a newer version there.

Anyone got any input on how to do this ?

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migrated from stackoverflow.com Dec 20 '09 at 10:27

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2 Answers 2

The answer to my problem was to remove SL receipts:

sudo rm /private/var/db/receipts/com.microsoft.installSilverlightPlugin*

Thanks to this thread:

http://forums.silverlight.net/forums/p/151634/338848.aspx

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Try deleting

com.microsoft.silverlight.plist

in

~/Library/Preferences/
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