My husband's laptop died. I have access to the hard drive via USB. He was using Outlook 2003 on his dead computer. Both computers run XP Home, Version 2002, SP3. The computer he is using now has OUtlook 2010. I have searched the USB hard drive for *.pst and have only found a 235 kb Archive.pst. I copied and pasted archive.pst into the folder that holds his OL2010 data file. The Archive showed up in his file list, but it's empty. Is that a version problem? Am I looking for the wrong extension? Any other ideas for restoring his address book. He's driving me a bit nutty! Thanks in advance for any assistance.