Processing Instructions Being Removed.

Hi,

Microsoft's web service removes the processing instructions,(ie. a xslt processing instruction) from a webmethod return value before transmitting results by default.

I thought by changing the returning type from String to XmlDocument, or XmlDataDocument that might work; It did not.

Is there a web page that discusses a solution to this issue?  I've searched around and found this question asked, but no documented response.

Regards,
Insane User