> Hi all,
>
> When I try to copy files over 1MB to a webfolder (webdav), I get:
> "an error copying some or all of the selected files "
>
> This is just happening for one website on this IIS server (hosting about 10
> others as well) and only on this one IIS server (we have a number of other
> servers running and none of the rest exhibit this behaviour).  I happens for
> all file types for files over 1MB.  Anything less copies fine.
>
> As per MS tech support, we increased the uploadreadaheadsize (to 200MB) but
> we still get the problem.
>
> Has anyone else experienced the same?  Any suggestions on what to check?
>
> Thx folks.

"David Wang" wrote:

> On Jan 14, 4:02 pm, CamaroZ281LE
> <CamaroZ28***@discussions.microsoft.com> wrote:
> > Hi all,
> >
> > When I try to copy files over 1MB to a webfolder (webdav), I get:
> > "an error copying some or all of the selected files "
> >
> > This is just happening for one website on this IIS server (hosting about 10
> > others as well) and only on this one IIS server (we have a number of other
> > servers running and none of the rest exhibit this behaviour).  I happens for
> > all file types for files over 1MB.  Anything less copies fine.
> >
> > As per MS tech support, we increased the uploadreadaheadsize (to 200MB) but
> > we still get the problem.
> >
> > Has anyone else experienced the same?  Any suggestions on what to check?
> >
> > Thx folks.
>
>
>
> Change UploadReadAheadSize back to the default value (49152). Tech
> Support is improper for making that suggestion. You want to close the
> window for DoS attack.
>
> UploadReadAheadSize has nothing to do with failure to copy files of
> that size. If it was involved, then you would not have been able to
> copy a 64KB file at all(larger than default value of 48K), but
> obviously you could.
>
> Since you are using WebDAV, none of the Asp* limits on upload are
> involved, so don't bother trying them - won't matter.
>
> Basically, there is no setting in IIS that limits upload size, so you
> must look for limits imposed by custom software *outside* of IIS
> itself which is invoked on all those uploaded file types.
>
> For example, URLScan or any other global ISAPI Filter installed on
> this server and limiting content-length would prevent uploads. Or
> Global Wildcard Application Mappings which can filter the incoming
> request and their sizes doing the rejection.
>
>
> //David
> http://w3-4u.blogspot.com
> http://blogs.msdn.com/David.Wang
> //
>

"CamaroZ281LE" wrote:

> David,
>
> I confirmed that the server is not running URLScan.  The Global ISAPI
> filters include the following: fpexedll.dll ; RpcProxy.dll ;
> ASP.NET_2.0.50727.0 (in this order and all set to low priority).
>
> Cheers

"Toomanyhats" wrote:

> If this is IIS7 it might be RequestFiltering default is 4 MB.
> The Request Filtering stting is available after installation of the IIS7
> Administration pack or it is directly settable in xxx.config
>
> maxallowedcontentlength. Whether Webdav interacts with that I don't know
> (don't know what webdav is. )
>
>
> "CamaroZ281LE" wrote:
>
> > David,
> >
> > I confirmed that the server is not running URLScan.  The Global ISAPI
> > filters include the following: fpexedll.dll ; RpcProxy.dll ;
> > ASP.NET_2.0.50727.0 (in this order and all set to low priority).
> >
> > Cheers

> "David Wang" wrote:
> > On Jan 14, 4:02 pm, CamaroZ281LE
> > <CamaroZ28***@discussions.microsoft.com> wrote:
> > > Hi all,
>
> > > When I try to copy files over 1MB to a webfolder (webdav), I get:
> > > "an error copying some or all of the selected files "
>
> > > This is just happening for one website on this IIS server (hosting about 10
> > > others as well) and only on this one IIS server (we have a number of other
> > > servers running and none of the rest exhibit this behaviour).  I happens for
> > > all file types for files over 1MB.  Anything less copies fine.
>
> > > As per MS tech support, we increased the uploadreadaheadsize (to 200MB) but
> > > we still get the problem.
>
> > > Has anyone else experienced the same?  Any suggestions on what to check?
>
> > > Thx folks.
>
> > Change UploadReadAheadSize back to the default value (49152). Tech
> > Support is improper for making that suggestion. You want to close the
> > window for DoS attack.
>
> > UploadReadAheadSize has nothing to do with failure to copy files of
> > that size. If it was involved, then you would not have been able to
> > copy a 64KB file at all(larger than default value of 48K), but
> > obviously you could.
>
> > Since you are using WebDAV, none of the Asp* limits on upload are
> > involved, so don't bother trying them - won't matter.
>
> > Basically, there is no setting in IIS that limits upload size, so you
> > must look for limits imposed by custom software *outside* of IIS
> > itself which is invoked on all those uploaded file types.
>
> > For example, URLScan or any other global ISAPI Filter installed on
> > this server and limiting content-length would prevent uploads. Or
> > Global Wildcard Application Mappings which can filter the incoming
> > request and their sizes doing the rejection.
>
> > //David
> >http://w3-4u.blogspot.com
> >http://blogs.msdn.com/David.Wang
> > //
>
> I'll reset the value back to 49K but this server isn't public facing so the
> chances of DoS on this box is limited.
>
> I'll check for other software outside IIS but I'm pretty confident that this
> server isn't running anything other than IIS for hosting about a dozen sites.
>  If it was something like URLScan or global ISAPI filter (neither of which
> I'm familiar with so forgive my ignorance), wouldn't the uploading of files
> be affected for all sites on this server?
>
> Thx- Hide quoted text -
>
> - Show quoted text -