I recieved a mail with a PIF attachment using Windows XP Outlook, I can see the PIF when previewing Inbox but can't after opening the mail. Can any professionals tell me how to open the attached PIF? Thanks.

Um... If I were you, I would NOT try to open a PIF attachment. It could be a virus. A PIF file--I think--is like a windows shortcut, but to a DOS program. I would scan the email for viruses. It's possible there was another DOS attachment that got was removed by some virus scanner before the email was routed to your inbox. If you are feeling bold, you could try saving the attachment and then try to examine it.

PIF File Extension refers to the Program Information File that may be associated with a DOS application in the Windows environment. This file contains information about how the DOS application will run in Windows. Chances are that it is a virus and should not be downloaded.

Thanks, Cyberslug and Philly. This mail is sent from a man I know, it's some infomation, not applciation program. I tried saving the attachment, but I even can't see it after opening the mail, any other solutions?

Outlook XP automatically blocks PIF attachments, since they are almost always viruses nowadays. If you are absolutely *positive* it is not a virus, you can unblock it by adding a registry key. Before attempting this, you should have the sender zip the file up and re-send it. You should be able to open it then. If that is impossible, unblock this file by going to Start then Run. Type in "regedit" without quotes. Navigate to HkeyCurrentUser\Software\Microsoft\Office\10.0\Outlook\Security and add a string value named "Level1Remove" (sans quotes.) For the value you should add pif; Again, you should really try and get the sender to zip it up and resend it before attempting to fool around with the registry which could damage your system.

Jeff, thank you very much for your valuable help. Best wishes.