"Bernard" wrote:

> This kb has the RFC detail -
> Information About the IIS File Transmission Protocol (FTP) Service
> http://support.microsoft.com/?id=283679
>
> --
> Regards,
> Bernard Cheah
> http://www.tryiis.com/
> http://support.microsoft.com/
> http://www.msmvps.com/bernard/
>
>
>
> "Alan T" <AlanT@discussions.microsoft.com> wrote in message
> news:7833E7CB-8782-48F2-A8AA-74BC7CA8FA4C@microsoft.com...
> > Alun,
> >
> > Oic, now I know the reason why IIS don't support this feature.
> >
> > Last question, where can I find document talking about what RFC followed
> in
> > IIS?
> >
> > Thanks for your help! Also thanks Bernard.
> >
> > Bests,
> > Alan
> >
> > "Alun Jones [MSFT]" wrote:
> >
> > > "Alan T" <AlanT@discussions.microsoft.com> wrote in message
> > > news:0B7BD82E-EE19-436A-9E53-46829E81A181@microsoft.com...
> > > > Do you mean although IIS 5/6 support this command, it still doesn't
> allow
> > > > user to modify the timestamp of the file as this action hasn't been
> > > > allowed
> > > > to made into RFC. Does IIS just support command in RFC (how about
> other
> > > > draft?) Can I find any documentation in Microsoft talking about any
> RFC
> > > > supported in IIS 5/6?
> > >
> > > To clarify:
> > >
> > > The MDTM command is in an Internet-Draft, and has not yet made it into
> RFC
> > > form.
> > >
> > > The operation you are looking for, to set the modification time by the
> MDTM
> > > command, is not documented in an Internet-Draft _or_ an RFC, because it
> is
> > > potentially unpredictable. You are asking for a feature that is
> completely
> > > undocumented, and known to be unreliable even when implemented as you
> > > describe.
> > >
> > > > Actually, the reason why I post this message is one user incident:
> > > > He tried to use "synchronization feature" in dreamweaver to compare &
> > > > synchronize the file in FTP server & his PC. However, it seems not
> stable
> > > > when using this feature (Sometime it can detect the different
> timestamp of
> > > > the file but sometime can't). So I just suggest him don't rely on this
> > > > feature on my FTP server. Am I correct?
> > >
> > > That may be an issue with his client software - the FTP server in IIS
> does
> > > not support changing the modification time of files. There are a number
> of
> > > other ways to achieve this, but not through FTP. One way, for example,
> > > would be to upload a .ZIP file through FTP, and have someone local to
> the
> > > site unzip the file, preserving the modification time.
> > >
> > > > Since I know that other FTP servers support this feature (e.g. Serv-U
> > > > FTP),
> > > > user may claim my FTP server is not user-friendly.
> > >
> > > Users may just as correctly claim that Serv-U's support of MDTM to
> change
> > > the modification time could lead to some inconsistencies between
> behaviour
> > > and intent. Different FTP server authors will make different choices as
> to
> > > which operations are justifiable, and which cause sufficient concern
> that
> > > they should not be implemented. Note, for instance, that the
> Internet-draft
> > > describing MDTM's behaviour was written by the author of an FTP server,
> and
> > > was reviewed, discussed, edited and approved by the IETF FTP Extensions
> > > Working Group, which consists of authors of FTP implementations - server
> and
> > > client. Discussion on that group included discussion of this feature,
> and
> > > it was decided that, since the feature contained possibilities for
> > > inconsistent and unpredictable behaviour, it was not worth documenting
> in
> > > the Internet-Draft.
> > >
> > > There has been discussion among the FTPEXT WG members as to how best to
> > > provide a feature to set attributes of a file, including the
> modification
> > > time, and there will possibly be a further Internet-Draft (that will
> > > eventually become an RFC) to describe how this can be done. Until then,
> > > there is no documented standard way to alter the modification time of a
> file
> > > through FTP.
> > >
> > > You can even look on this as a security feature, in that you are able to
> > > tell at what time the file was really uploaded through FTP, rather than
> what
> > > time the user wanted you to think it was uploaded. This feature is also
> > > used by FTP mirroring software to ensure that files are correctly
> updated
> > > only when necessary.
> > >
> > > Alun.
> > > ~~~~
> > >
> > >
> > >
>
>