I setup a new workstation (in a domain environment/SBS 2011 STND) and successfully opened and moved all of the user's OLD email to the NEW exchange inbox. I also opened up an archive.pst (from the old outlook 2003/SBS 2003) computer and left it opened. All was fine for about 5 months. But had to recently switch out the hard drive and rebuild the OS and reinstall apps. So far all is well with the new rebuilt pc, but I'm not able to locate the arcive.pst. I took the OLD HDD and placed inside of another pc to browse the folders/files. But I cannot locate the archive.pst? Would Outlook 2010/Exchange2010 have renamed the file or file extension? Any ideas on how to locate the archive.pst file? I’m not certain 100%, but do recall coping and pasting the Archive.pst into the user’s folder location on the new workstation 5 months back.