We have hosted our WCF service in a stand-alone mode and not using IIS and this service is then accessed by silver light 3 client. Now the service exposes certain operation that transfer huge amount of data and best way to reduce the data latency is to compress them. However, i m not able to find a straight forward solution in SL3 and WCF world.

I did read lot of post that suggest turning on GZip compression on IIS that gives out-of-box compression feature, however in this case our service is hosted in a stand-alone mode, so the best way is to write our own WCF custom encoder. Does anyone know out-of-box solution, so i don't need to re-invent the wheel.

You can use SharpZipLib dll to compress data in wcf service, and decompress data in silvelight client. It is an open source dll for compress/decompress

Linkto download SharpZipLib dll - http://www.icsharpcode.net/OpenSource/SharpZipLib/Download.aspx

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Gaurav Khanna