AspBufferingLimit and impact on server performance

Are you sure? If disabling buffer would work for upload/download, I'd
be more than happy to do it instead of modifying the buffer limit.
Other people suggested breaking the data into smaller chunks and run a
loop..
 >> Stay informed about: AspBufferingLimit and impact on server performance 

<tedqn RemoveThis @yahoo.com> wrote in message
news:1137912447.565104.248660@g47g2000cwa.googlegroups.com...
> Are you sure? If disabling buffer would work for upload/download, I'd
> be more than happy to do it instead of modifying the buffer limit.
> Other people suggested breaking the data into smaller chunks and run a
> loop..
>
They are right.
(b.t.w. ISAPI 6.0 for IIS6 allows a specific extension to upload/download,
it does not cache and it does not exhaust resources as -all- other previous
methods do)

You should do it in chunks of say 4096 bytes.
And disable the buffering for the specific page
sample:

Response.Buffer = false

'Set the content type to the specific type that you are sending.

Response.ContentType = "application/x-zip-compressed" 'or use your own
content type here...

Dim strFilePath, lSize, lBlocks
Const CHUNK = 2048
set objStream = CreateObject("ADODB.Stream")

objStream.Open
objStream.Type = 1
objStream.LoadFromFile strFilePath
lSize = objStream.Size
Response.AddHeader "Content-Length", lSize
lBlocks = 1
For lBlocks = lBlocks To lSize \ CHUNK
If Response.IsClientConnected = False Then Exit For
Response.BinaryWrite objStream.Read(CHUNK)
Next
lSize = lSize MOD CHUNK
If lSize > 0 And Response.IsClientConnected = True Then
Response.BinaryWrite objStream.Read(lSize)
End If

objStream.Close
 >> Stay informed about: AspBufferingLimit and impact on server performance 

Well I tried your code and immediately go a page error that says
buffering must be turned on. Also came across a post which someone
claimed the chunk size method produced a corrupted PDF.

After some further research my final solution is

.....................
Response.AddHeader "Content-Length", objStream.Size 'to show the total
size on the save dialog

Response.Buffer = False 'must be AFTER the Response.AddHeader
While Not objStream.EOS
Response.BinaryWrite(objStream.Read(2048))
WEnd
ObjStream.Close
 >> Stay informed about: AspBufferingLimit and impact on server performance 

<tedqn.TakeThisOut@yahoo.com> wrote in message
news:1138046894.165097.40360@f14g2000cwb.googlegroups.com...
> Well I tried your code and immediately go a page error that says
> buffering must be turned on. Also came across a post which someone
> claimed the chunk size method produced a corrupted PDF.
>
> After some further research my final solution is
>
> ....................
> Response.AddHeader "Content-Length", objStream.Size 'to show the total
> size on the save dialog


Ok then here the final script. Don't forget the 'is connected' property.
Because if the client disconnects, your loop will create some stress


Response.ContentType = "application/x-zip-compressed" 'sample contenttype

Dim strFilePath
Const CHUNK = 2048
strFilePath = [yourfile]
objStream.Open
objStream.Type = 1
objStream.LoadFromFile strFilePath

Response.AddHeader "Content-Length", objStream.Size
Response.Buffer = False
Do Until objStream.EOS Or Not Response.IsClientConnected
Response.BinaryWrite(objStream.Read(CHUNK))
Loop

objStream.Close
 >> Stay informed about: AspBufferingLimit and impact on server performance