Here's a useful addition to your toolbox... it's a tool that will create a PST from an orphaned OST file.

Chris Meirick on July 8, 2003 at 04:11 PM in Tools & Utilities
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With respect to orphaned OST files: I have an orphaned 1.5 Gig file---and no capacity to back it up---which means I'd be trying the OST2PST---hoping and praying that it won't get scrozzled in the process. Do you have experience with this tool, and if so, would you advise me to go ahead and use it under the circumstances?

Also---I need consulting help around these Exchange Server issues. Are you for hire?

Posted by: Brian Wiessner at Sep 9, 2003 7:50:12 AM

Hi Brian,

I have used this tool a couple of times without any problems, albeit the .ost files weren't as large as yours. Are you sure you can't find some space (anywhere!) to backup the .ost file to? Is there no free space on the same laptop/PC, another PC, a server... somewhere!? If your life depends on getting this file converted, please back it up first before playing with it. I take it the Messaging Profile has been changed or removed hence the need to convert the .ost instead of exporting it?

I'm not sure about being for hire exactly, however I'll do my best to help, if you send me an e-mail detailing your problem, or a contact telephone number if you're not too far away! (I'm in the UK)


Posted by: Chris at Sep 9, 2003 10:00:06 AM

Hey Brian,

OST2PST works great, with one exception - Outlook 2003 .ost files. Microsoft changed this and .pst files to incorporate new features with Outlook 2003. It will begin the conversion and then crash the process.

If anyone has a version that works on Outlook 2003 .ost files, please email me!


Posted by: Jim Poehlman at Nov 8, 2003 5:41:48 PM

Hi all, i have download the OST2PST file but when i try to open the pst file in Outlook it is empty. Some one have an idea... Thanks for your answers...


Posted by: Boris at Nov 30, 2003 11:48:07 PM

What version of Outlook are you using? Did the OST to PST export complete successfully? What info is in the ost2pst log file? How big is the OST? Can you run the export again?

Posted by: Chris Meirick at Dec 1, 2003 2:23:45 PM

I use Outlook 2002 (XP). The OST to PST export process complete successfully. The only log file i found is the the log of installation progress. The OST file is 252Mb. And i can run the export again and again but nothing. When i open the pst file the only folders that apears are "mail box", "sent items", "deleted items" and both are empty. I tried to extract the datas with a evaluation version of ExchangeRecovery and it works. But the full version it's a little bit to expensive for me. Thnak you very much for your help.


Posted by: Boris at Dec 2, 2003 5:37:12 AM

Hi Boris... I've used the app a few times without any problems... it is freeware, so we can't complain too much! For whatever reason it seems to have issues with your OST :-( Have you tried running SCANPST on the OST too? http://www.slipstick.com/problems/scanpst.htm

Posted by: Chris Meirick at Dec 3, 2003 4:29:15 PM

Is there any application like the ExchangeRecovery 2.0 that is freeware or cheaper? ExchangeRecovery 2.0 found all my data but I can't give 600$...

Posted by: _DiMoN_ at Dec 6, 2003 6:37:25 AM

Has anyone received internal error code 15 when trying to convert an .ost file? The .ost file is very small (under 5 megs) and is from an Outlook 2000 client. Any suggestions would be appreciated. Thanks!

Posted by: John G. at Dec 12, 2003 6:46:29 AM

How to export mails from pst to Exchange server..Pls post your suggetions...

Posted by: rudra at Jan 13, 2004 7:39:47 AM

Exmerge will enable you to copy or merge data from multiple PSTs onto an Exchange server. Is that what you need to do?

If it's just one PST that you’re dealing with, you could of course just import it using Outlook – ‘File\Import and Export’ or you could also, open the PST and mailbox in Outlook and 'drag and drop.'





Posted by: Chris Meirick at Jan 13, 2004 8:39:32 AM

Still trying to find a tool that will convert .OST to .PST for OL2003. Did anyone solve the problem? V3 of the OST2PST.exe product seems to now be the ExchangeRecovery tool mention above. Any help would be most appreciated.


Posted by: Gary Pruce at Feb 25, 2004 6:37:43 AM

It looks like ExchangeRecovery 2.0 will do the job, with support for 2003, but at a price...


Posted by: Chris Meirick at Feb 25, 2004 7:00:35 AM

Finally! Got this to work - let me know if you need help.

Posted by: Gary Pruce at Feb 25, 2004 8:17:30 AM

Hi all

I want to do the opposite from rudra. I've got a user who's mail is going to our internal exchange server. Want it to get delivered to her local PST and want to get the existing stuff out of the server mailbox and back into her PST. At the moment we burn the PSTs which needless to say is a little cumbersome. I was wondering also if anyone knew of any products that would do incremental workstation PST backups to a share.

Posted by: Kevin Edwards at Feb 25, 2004 3:25:05 PM

Hi All,
I have a corrupt .pst file. I ran scanpst on it and it said it repaired it. However when I attach the personal folder there is nothing in there. Just the folder name and a deleted items folder both with no contents. Any suggestions (preferably ones that don't cost).

Posted by: Fran McCarthy at Feb 27, 2004 6:06:38 AM

Did the job, Just what I needed, goes to show you
not all of what Microsoft says is true! many thanks

Posted by: David Adams at Mar 1, 2004 9:40:03 AM

I used the OST2PST conversions utility yesterday. Converting outlook 2000 OST to pst conversion. it worked great. But when I used the same tool for outlook 2003 it gave me an error “internal error (code 0000000E). How ever the file was converted to PST but when I tried to import it into the outlook 2003 received an error that " this is not an PST file" attribute as unknown. Help...


Posted by: Irshad at Mar 2, 2004 9:52:02 AM

Help! I too have been having issues with an OST that are similar to several issues mentioned above. The OST gets Internal Error = 00000015, just as John G. ran into in an earlier posting. Also, when I run SCANPST (which can repair PSTs and OSTs), then try to convert it to a PST, it does the same thing as what happened to Fran: there is a blank Deleted Items folder, but nothing else. When I ran OST2PST withOUT the repair, it gives me 4200 deleted items, but still nothing else. I am at a loss.

I ran ExchangeRecovery and it shows me a few Sent Items and a handful of Draft items, in addition to the 4200 deleted items - is this a limitation of the Demo, or is this all it was able to recover? The total PST file size was about 118MB, down from 770MB in the OST. The OST is from the 2000 versions of Exchange and Outlook.

Any help is greatly appreciated.

Posted by: Michael Harriff at Mar 4, 2004 7:19:37 AM

I'm in trouble to. I've got a Outlook 2003 client and OST2PST don't work. If somebody know how i stay online.

I saw ExchangeRecovery 2.0 but too expensive.

Posted by: Jef34 at Apr 6, 2004 5:34:29 AM

we are upgrading from outlook 2000 to 2003 and our personal folder list was not kept in the upgrade. Outlook 2003 defaulted to the server mailbox not personal folders. is there a way to stop this, or do we have to change the mailbox location to personal folders and import the old .pst file

Posted by: John at Apr 8, 2004 9:08:44 AM

Can someone email be a copy of the ost2pst conversion file, it seems to have been taken down from the site, and I've need to convert .5 gig email file over. thxs, doug

Posted by: doug at Jun 7, 2004 10:18:46 AM

Has anybody finally solved the problem of how to convert OST to PST for outlook 2003. Any help is appreciated. Gary Pruce has written above that he solved this problem. Gary can you help me?

Thanks Manish

Posted by: Manish Mathuria at Jun 12, 2004 11:14:33 AM

Go get the converter demo to www.softaward.com
It works fine...and free

Posted by: Yvan at Jun 12, 2004 1:45:47 PM

We can convert your files at low cost and no fuss. FTP servers ready for uploads and normal turnaround is 24 hours.

Posted by: Lee Taylor at Jun 13, 2004 5:19:02 PM