The latest release of Parallels seems to have crippled file access via the .psf share. When trying to open an Outlook pst file across the .psf share, Outlook reports that the file is not a pst file. I've tried accessing the file directly via \\.psf or by using the mapped drives that Parallels sets up and in both cases Outlook reports that the file is not a PST file. I've tried re-installing Parallels Tools, to no avail. As soon as I copy the PST file across to the local drive (i.e. C Drive within the VM), Outlook sees the file fine and loads it. Looks like the VM file handlers in Version 5.0.9344 are broken.