Outlook OST to PST Conversion

Discussion in 'General Chat' started by nheather, Apr 7, 2017.

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  1. nheather

    nheather
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    Does anyone know of any cheap reliable applications/services that will convert an Outlook OST to PST.

    I have found a few and they all start off by saying they are free, but that turns out to be a trial that only does 20 or so messages - if you want to complete the job then you have to buy the full version.

    So I am resigned that I will have to pay. But the ones I have seen are all pretty expensive (£75 or more) which would be fine if this was something I wanted to do regularly but I only need it once.

    Cheers,

    Nigel
     
  2. The Dude

    The Dude
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    I have a couple which work really well, which outlook version are you using?

    drop me a PM with your email addy and i'll send you the software, it's only a few mb.
     
  3. BB3Lions

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    Don't forget to backup your OST first :)
     
  4. Si01327

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    Assuming your Outlook OST file is still accessible in Outlook, can't you just export it to a PST file from within there? File, Open, Import, then choose Export to a file from the list and select .PST from the choices (confusing why they put an Export option within an Import menu but that's Microsoft I guess!).

    Apologies if I've missed something obvious.
     
  5. nheather

    nheather
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    The OST was produced by MS Outlook Exchange which I no longer have access to. Trying to bring it into Microsoft Outlook but that only works with PST files.

    Cheers,

    Nigel
     
  6. nheather

    nheather
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    Thanks,

    I no longer have access to the exchange server so only the third option is viable for me. Which takes us back to my OP where I had already concluded this and was asking whether anyone knew of any cheap applications/services to do this.

    The ones I have seen range between £75 and £150 which would be good value for a small IT department that might have regular use for it, but I will be just using it once so was hoping for something cheaper.

    Cheers,

    Nigel
     
  7. imightbewrong

    imightbewrong
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    What type of file is an OST? Is it an xml/text-type thing, or some bespoke binary format?
     
  8. nheather

    nheather
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    I've not tried opening it in something like Notepad++, but my guess is that it is a binary.

    If it were XML then I would imagine that we would be inundated with freeware apps that could do the transformation.

    Everything I have seen so far has offered a free-trial that will process 5-20 emails and a paid option if you want to do more.

    I suspect the format is MS Proprietary and closely guarded. The applications out there are probably all using the same library functions that they have to buy under a strict agreement of use from MS.

    Cheers,

    Nigel
     
  9. imightbewrong

    imightbewrong
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    Yes looks like it is proprietary and un-documented.

    This one claims pretty hard to be free - is there a hidden limit in there?

    Free OST file viewer to view, read & open OST file without Outlook

    Finally there pages with a few hoops you can jump through to get Office to open he OST file by disabling offline mode then using your file and flicking some switches - actually this was suggested above but you ruled it out - do you no longer have access to Outlook? or does is still need an Exchange connection? The OST file seems to be largely for working offline so it shouldn't need exchange - right?
     
  10. nheather

    nheather
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    I'll look at it but I have my doubts. I tried one, OST2, that as far as I am concerned claims to do everything I need in the free very. It even has a table comparing the free and paid options and all looks good for my needs. So I installed it only to find that it only does 5 emails.

    I was pretty miffed because it had required installing some old distributibles on my shiny new OS install so I vented a bit of steam on live chat.

    The wriggle room they give themselves is that the FREE version does everything claimed on an OST connected to exchange but not on disconnected OST. Rather cheeky I thought because if it is connected you don't need any tools - you can just use Outlook Exchange to output to PST.

    Cheers,

    Nigel
     
  11. Gavin_Hall

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    I have an old piece of software that I used years ago to convert an OST to a PST, called OST2PST and was free back in 2004, the developers no longer exist from what I can tell. No guarantees that it will work with your OST, as I guess OST structures changed over the years. It certainly doesn't work with the current version of Outlook and OST files, but by all means give it a try!

    Update: I have removed the link as unfortunately the version of OST was not supported by this version of software.
     
    Last edited: Apr 10, 2017
  12. The Dude

    The Dude
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    It's no good unfortunately, I use the same software for older clients but if the .ost was created OL2010> you'll need one of the newer tools, totally different database formats.
     
  13. nheather

    nheather
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    Yes I tried it and can confirm this. It throws an error which suggests that the OST is faulty. However, I know that the newer trial software has had no problem (and I've tried a couple). So I suspect that the OST format has changed over the years and the old software thinks it is looking at a corrupt OST.

    Think I am going to have to bite the bullet and pay up.

    Cheers,

    Nigel
     
  14. nheather

    nheather
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    Not free but is quite interesting - presents all the folders in a browser type view and shows each of the emails but won't let you look at them.

    Cheers,

    Nigel
     
  15. nheather

    nheather
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    All sorted now.

    Good news - I managed to get it converted free

    Bad news - the emails I wanted didn't contain the information I was hoping for.

    Cheers,

    Nigel
     
  16. Gavin_Hall

    Gavin_Hall
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    Well at least you saved the pennies! :) Out of interest, what did you use for the conversion?
     
  17. imightbewrong

    imightbewrong
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    Yes would be useful to know for next person to Google it :)
     
  18. nheather

    nheather
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    Not much help I'm afraid.

    After loads of google research I concluded that there is no legal way of getting software that would do the job for free.

    So I was resigned to buying a tool to do the job - the cheapest option was a utility from Zook for $49.

    However, just before I pressed the button I managed to find someone in IT at work to do it for me.

    Cheers,

    Nigel
     

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