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Old 05-12-2006   #4 (permalink)
gxdata
Guest


 

Re: WinFS support for Alternate Data Streams (ADS)

It seems that WinFS Beta 1 has not included many of the great features of
the NTFS file system - hard links, reparse points, alternate / multiple data
streams.

I assume that you're going to have support for these? Otherwaise (eg, for
the metadata that is so much a part of the WinFS model) you'll really piss
off a lot of peope who use either the standard or extended property sheets,
or (like me) the ADS as a much more customizable target for complex, large
metadata.

What's the update on this? Can we expect some exploration on the team blog
"What's in Store?" ?

IL Thomas
GeoSciSoft - Perth, Australia

"Benjamin Grol [MSFT]" <BenjaminGrolMSFT@discussions.microsoft.com> wrote in
message news:C2823E0A-C371-4F56-8225-451500899579@microsoft.com...
> Yes,
> We don't support ADS in WinFS Beta 1. We're considering doing this for
> WinFS v1 based on customer requirements. More on this soon.
>
> -Ben
> Bgrol@microsoft.com [MSFT]
> This posting is provided "AS IS" with no warranties, and confers no rights
>
>
>
> "Aaron Oneal" wrote:
>
>> Well, I just tested it, and beta 1 definitely does not support ADS. If
>> you
>> access the store from the network share (and not the WinFS namespace
>> extension under My Computer), you will get the error message stated
>> below.
>> If you then try to access the alternate stream you'll get a message "The
>> filename, directory name, or volume label syntax is incorrect." I
>> thought
>> perhaps it was just the RsFx driver that didn't support the syntax, so I
>> copied an ADS file into WinFS using the namespace extension (which
>> probably
>> uses RsFx still anyway), and it did not give me the error message, so I
>> copied the file back out to take a look at it. When I copied the file
>> back
>> out, the ADS streams were gone. So, based on my tests too, it appears
>> they
>> are not supported.
>>
>> "marc" wrote:
>>
>> > Hi,
>> >
>> > the WinFS SDK documentation states that..."If you attempt to copy this
>> > text file to a "WinFS" store, you will receive the following error: The
>> > file example.txt has extra information attached to it that might be
>> > lost if you continue copying. The contents of the file will not be
>> > affected...."
>> >
>> > I have tested this, copying a file with ADS data to the WinFS store. No
>> > warning No message appears during this operation.
>> >
>> > Anyone can help? It really looks like WinFS does not support ADS, I
>> > have tested it.
>> >
>> > Best Regards,
>> > Marc Ochsenmeier
>> > www.ochsenmeier.de
>> >
>> >