Tamino XSLT Server Extension Encoding Problem

I tested Tamino XSLT Server Extension new release. I changed NASCAR_Drivers.xml file encoding to euc-kr to use a CJK character in sample. But XSLT Server Extension doesn’t work and return exception messages like this “javax.xml.transform.TransformerException: org.xml.sax.SAXParseException: An invalid XML character (Unicode: 0xbf) was found in the element content of the document”.
I was told that XSLT Server Extension doesn’t work in previous version.
I tested in Win2000 server and Tamino 3.1.1.

Please give me a help.