>Not sure what you mean. Where are you 'sending' it ? Anything to do with HTML ?

This is a Web Service responding to a client. The client is, for now, a simple VB.NET desktop application.

This is a regular .NET ASMX Web Service returning a XML string.

As part of the XML structure, some datasets are inserted (converted into XML, with the dataset structure), and in there, I may have all kind of characters.