A while back NOD32 (v. 4.0.424.0) quarantined BthHelpcdrom.dll. Now, every time I boot up I get an error message that this file can't be found. Other than that, its lack appears to have no effect on my system. How do I verify that this file is, indeed, infected with something. If it isn't, I'd like to get it out of quarantine and restore it so as to eliminate the error message. Failing that (or if it is infected), I'd like to get a replacement for it. I googled it, but could find nothing on this particular .dll file. Thanks for any help.