In addition to Christian's excellent example you can also use the WSE extensions from Microsoft. One of the features is the ability to build SOAP messages on the fly.

+++ Rick ---


>Hello me :) and all UT,
>
>I got it...
>
>http://www.gotdotnet.com/Community/UserSamples/Details.aspx?SampleGuid=35c47ebb-d806-4995-8797-a42251a8ace3
>
>This samples looks like it does exactly what you and I want to do.
>
>Alex