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From: Jeff Johnson on 3 Nov 2009 14:05
"mayayana" <mayaXXyana(a)rcXXn.com> wrote in message
news:%2375srtKXKHA.2388(a)TK2MSFTNGP02.phx.gbl...

> Yes, you're right. On WinXP NTFS there's a
> Summary tab and entries are saved to the
> SummaryInformation stream. So I booted
> XP FAT32 to see how that does it. There's
> no Summary tab for common files there at all.

I guess I still consider XP to be the most recent version of Windows....


From: Karl E. Peterson on 3 Nov 2009 14:39
mayayana wrote:
> Then I looked at Win7. That's NTFS, of course,
> but I didn't find a file with a Summary tab. There's
> a Details tab that provides extension-specific
> info. (like size for a BMP) but nothing like
> Summary info. I had heard somewhere that MS
> had discontinued using ADS. Maybe this was
> part of it -- that they added Summary info. in
> XP but then removed it. That makes sense. It
> must be very confusing for people to find that
> their file properties sometimes persist and
> sometimes don't, without any discernible pattern
> to that behavior. :)

When I do a scan of my images, I find that a whole lot of them have two ADS, one of
which is spoken of here:

http://msdn.microsoft.com/en-us/library/dd942525%28PROT.10%29.aspx

The other seems to be related to indexing and thumbnails:

http://support.microsoft.com/default.aspx?scid=kb;EN-US;q319300

It *seems* these are mostly on older files, but I can't say that for sure without
further digging.

Fwiw...
--
..NET: It's About Trust!
http://vfred.mvps.org


From: mayayana on 3 Nov 2009 17:10

>
> When I do a scan of my images, I find that a whole lot of them have two
ADS, one of
> which is spoken of here:
>
> http://msdn.microsoft.com/en-us/library/dd942525%28PROT.10%29.aspx

That one seems to be part of the properties.
I see it present weherever there's a
SummaryInformation stream.
>
> The other seems to be related to indexing and thumbnails:
>
> http://support.microsoft.com/default.aspx?scid=kb;EN-US;q319300
>

I'd never heard of that before. Content Indexing
Server". I wonder if that's the same as the indexing
service. That's one of the things I always disable
at install, so I guess I wouldn't see any streams
it might create.
It seems odd that Windows would create
thumbnails of *everything* without even asking,
especially since virtually all camera JPGs have an
embedded thumbnail. I wonder if maybe they changed
that in XP. The link you posted seems to be aimed
at people who have complained about the behavior.



From: Karl E. Peterson on 3 Nov 2009 18:36
mayayana wrote:
>> When I do a scan of my images, I find that a whole lot of them have two ADS, one
>> of which is spoken of here:
>>
>> http://msdn.microsoft.com/en-us/library/dd942525%28PROT.10%29.aspx
>
> That one seems to be part of the properties.
> I see it present weherever there's a
> SummaryInformation stream.
>>
>> The other seems to be related to indexing and thumbnails:
>>
>> http://support.microsoft.com/default.aspx?scid=kb;EN-US;q319300
>
> I'd never heard of that before. Content Indexing
> Server". I wonder if that's the same as the indexing
> service. That's one of the things I always disable
> at install, so I guess I wouldn't see any streams
> it might create.

I think so, yeah.

> It seems odd that Windows would create
> thumbnails of *everything* without even asking,
> especially since virtually all camera JPGs have an
> embedded thumbnail. I wonder if maybe they changed
> that in XP. The link you posted seems to be aimed
> at people who have complained about the behavior.

Well, those were pretty much older picture files, and I probably slipped and didn't
have "Cache thumbnails" unchecked at some point. I think the indexing thing may be
somewhat misleading, because if Windows isn't storing the thumbnails in ADS, where
is it storing them?
--
..NET: It's About Trust!
http://vfred.mvps.org


From: Karl E. Peterson on 3 Nov 2009 18:37
Chris Dunaway wrote:
> On Nov 2, 2:11 pm, "Karl E. Peterson" <k...(a)exmvps.org> wrote:
>> John Smith wrote:
>> > I will need to update files related to my project regularly (through a
>> > separate downloader) and would like to store everything in some sort of
>> > container that can't be edited or modified on the client's machine. How
>> > should I go about this?
>>
>> Alternate Data Streams?
>
> Can VB6 open an Alternate Data Stream?

Here ya go: http://vb.mvps.org/samples/Streams/

I'd be interested in feedback from any/all!
--
..NET: It's About Trust!
http://vfred.mvps.org


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