files w/ adobe icons won't open

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adobe reader 9. toshiba laptop vista premium.1gbram . in program files there's alot of files adobe icon next them. ahere dll files. when try open 1 of these adobe opens black screen message follows: adobe not open (name of file) because either not supported file type or because file has been damaged (for exampleit sent email atacement , was't correctly decoded. don't have printer. these icons in lot of files. why can;t open these?

you can't open them because system files. somehow reader icon got associated them.


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