Most likely it has something to do with backing up to a remote drive -
network usages is not supported and often results in corrupt data.

--
Diane Poremsky [MVP - Outlook]
Author, Teach Yourself Outlook 2003 in 24 Hours
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"Celtic" wrote in message
...
Hi guys, for the last several months the company has been using
pfbackup to backup our outlook 2000 pst files to a NAS server. This
week one of the owners lost some emails and wanted to recover from the
backup. It failed. I checked the pst files from a dozen or so other
users and they are all corruted on the server. When I try to open the
files, either using pfbackup or open pst file, I get the messges :

Properties for this information service need to be defined prior to
use

and then

The file .... is not a personal folders file.

I have tried scanpst and several demo pst repair programs but these
have't worked. I have tried opening the pst files in outlook 2000,
2003 & 2007 and still they dont open. The files are not read only so
thats not the problem either.

Is there anything that can be done to recover these emails the boss is
going spare.

Many regards

Martin