Short answer: not at all. Feel free to delete them!
Long answer: most viruses these days create new files with names that
sound oddly familiar and/or similar to system files. But, if they are
quarantined, and your system still runs/boots, then, they can't be
important to the system! (A quarantined file can not be read at all by
the computer. So, we know with 100% certainty that they aren't really
needed--or the computer would have complained about the missing
It's safe. Go ahead and delete.
One quick caveat: dll32.hlp seems to be also related to mIRC.. It is
possible (though not likely) that you will have to reinstall that
application if, after deleting the files, your copy of mIRC fails.
Hope that helps!
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