The way you are doing this seems like a lot of work.  

I take the xml representation of the dataset and compress it into a byte
array using NZipLib.  The web service returns a byte array.  On the
client side, I then take the byte array, uncompress it into Xml, and
then reinstantiate the dataset from the xml.

We tend to get extremely high levels of compression this way (as you
should with xml data).

Thanks,

Robert


-----Original Message-----
From: Carl Schei [mailto:[EMAIL PROTECTED]] 
Sent: Thursday, May 02, 2002 1:27 PM
To: [EMAIL PROTECTED]
Subject: [DOTNET] HTTP Compression of XML WebServices


Hi There,

I am trying to generically compress data between a thick windows client
and a web service (thanks to
http://discuss.develop.com/archives/wa.exe?A2=ind0203A&L=DOTNET&P=R47498
)

In order to do this I have created an HttpModule that adds a compression
filter to the response stream. All looks fine. The problem I am having
is in generically decompressing the data on the client side.

Essentially I need a handle to the response stream that arrives on the
client side. I can't seem to find any way of hooking into this process?
The web proxy doesn't seem to allow one to chain into the response
before it processes it.

Thoughts? How are people compressing Datasets between server and client?
The performance increases that we have seen are pretty large for an
average sized dataset!

hmmm, I am wondering whether I could target the datasets directly and
instead create a dataset subclass implementing a custom
serialiser/deserialiser involving compression/decompression.

Thanks,
- Carl



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