If, on the other hand, you want to search the PST (personal folders) file on your hard disk, I know of no utility to do so. The PST contains a lot more than just email and is definitely different from an OLE mail file...
If this is the case, you probably have to set up something to suck out the CVS files via IMAP or POP (possibly leaving them on the server so you can later get them into your Outlook personal folders). The problem comes if you generally have Outlook open, because it would likely snag those emails before your script got to look at them. (Personally, I keep Outlook closed and use a POP-polling applet to tell me if I have anything in there. In that case, the only problem is mail that arrives while you're reading mail.)
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