On a windows 2000 machine, we use Biztalk 2002 to transport XML
messages.

One of the machines that it is communicating with, is a SAP R/3
platform. We want to use the native HTTP capability that it has, but
that requires XML to be encoded with UTF8 and also to have that
explicit in the XML header so it must be: <?xml version="1.0"
encoding="UTF-8"?>

Now I have tried different alternatives, but every time I had
something that should be a working solution the encoding="UTF-8" was
suppressed from the actual message.

In the mean time I have shifted to programming it out in ASP using
xmlHttp.send.

I tried to use transform node with an XSL that explictly adds the
desired encoding or hard inserting the text string in front of the XML
message. I could see the mechanisms themselves working correctly with
adding something else than UTF-8.
But when the actual message was posted encoding of UTF-8 was
suppressed (left out).

I also tried this before the actual sending:
xmlhttp.setRequestHeader "Content-Type", "text/xml"
xmlhttp.setRequestHeader "charset", "utf-8"

but then received an internal error:
Error Type:
msxml3.dll (0x80004005)
Unspecified error
/SAPReceiveIDOC/Repost_to_SAP.asp, line 18


Browser Type:
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR
1.0.3705; .NET CLR 1.1.4322)

Page:
POST 58 bytes to /SAPReceiveIDOC/Repost_to_SAP.asp

POST Data:

Microsoft VBScript runtime error '800a000d'
----------------------
How can I get that utf-8 on the actual posted XML message to SAP ?

Thanks for any help you can offer.