thanks for the responses.
"Diane Poremsky [MVP]" msn.com> wrote in message
news:ug777A1EJHA.4784@TK2MSFTNGP05.phx.gbl...
> When you keep the same version of outlook then using the old pst is best.
> It's not as problematic to import when you are changing versions though.
> Yeah, you lose some hidden things, like forms & custom views and the last
> modified date is messed up, but using a pst created by the current version
> of outlook is a plus (and not everyone uses custom views, custom forms or
> autoarchive, so nothing lost). Importing is faster and easier for many
> users.
>
> Had someone started with Outlook 97 and just kept reusing the old pst
> through 2007, he'd have super small table (max approx 14000 messages per
> folder) and other issues as the pst format changed some between each
> version. Problems caused by the older formats wasn't an issue until
> Outlook 2007, then using old psts were problematic (in ways other than
> ANSI/Unicode). If the user had imported to a new version each time, he
> wouldn't worry about anything - he'd have the latest, greatest pst format
> with the new version.
>
> What is wrong is the recommendation of woody (of office watch fame) to
> make a new pst and import from the old one every 6 months. That's
> asinine - its totally unnecessary to do it just for the sake of doing it.
>
> Import is also not a good method when you get a new computer and use the
> same version of Outlook. But for those changing versions or who are just
> wanting to copy calendar and contacts, import/export is perfectly
> acceptable way to do it.
>
> --
> Diane Poremsky [MVP - Outlook]
> Outlook Tips:
http://www.outlook-tips.net/
> Outlook & Exchange Solutions Center:
http://www.slipstick.com
>
> Outlook Tips by email:
> dailytips-subscribe-request@
lists.outlooktips.net
>
> EMO - a weekly newsletter about Outlook and Exchange:
> EMO-NEWSLETTER-SUBSCRIBE-REQUEST@
PEACH.EASE.LSOFT.COM
>
> You can access this newsgroup by visiting
>
http://www.microsoft.com/office/community/en-us/default.mspx or point your
> newsreader to
msnews.microsoft.com.
>
>
> "Gordon"
yahoo.com.invalid> wrote in message
> news:ekLpcZxEJHA.5484@TK2MSFTNGP03.phx.gbl...
>>> Yes. Those two versions use Unicode format psts. Older versions do not -
>>> so it wouldn't work with older versions.
>>>