About xmldoc and ISO-8859-1

Hi, I'm trying to make DRES project (http://sourceforge.net/projects/dres/) compliant with ISO-8859-1. I'm not using mbstring into my windows 2000 server, I know there is problem with Internet Explorer browser... I saw DRES it use 'xmldoc' API into the file xmlutil.php. But this fonction seems not to be in use at this time. By the way I can't find any documentation about UTF-8, ISO-8859-1 and so about XMLDOM API. What I saw it's when I save a formula with DRES, it register a XML file, and the content is: <?xml version="1.0"?> <requirement identifier="aaaaaaaa" name="&#xE0;&#xE0;&#xE0;&#xE0;" priority="high" status="draft"><revision date="2004-11-19 13:14:45" label=""><author id="gelinp">Patrick Gelin</author><comment></comment></revision><description>&#x9A69;</descripti on></requirement> The name filed was originaly: name='àààà' I don't know if it's UTF-8 or ISO-8859-1 format. When the formula refresh it show: name='Ã Ã Ã Ã ' Where does this come from? Is it a problem with XMLDOM API? How to correct this? Thank.