Question : how to handle Encoding Format ,XML Parsing Error: not well-formed?

Error is "XML Parsing Error: not well-formed" if its utf-8 encoding is choosen

Is der any other character like this which cause problems since i dont have control , whether am retriving all suitable character which doesnt harm the tag since my db holds even Word document content which has numerous symbols.
Why other encoding like utf-8 exists how can i choose encoding which works for all .

Yes, ISO-8859-1 which doesnot causes this error , so is it the best one for encoding someway am not able to understand encoding stuff ?

Note : Xml files are created using ASP Files from db . which is not a issue .

i want to know ,
how to handle this ?
what are the illegal character which doesnot support xml ? Like SQL apostrophe Causes error similarly is der anything in XML which shld be handled?
which encoding is the best that suit all ?

Am curious to know kinda bugs in xml ?

         
          ASP Code
<%
'I copied pasted the charcter which caused that error ??
Response.write("Character Making Issues How to handle these — "&" This is not minus symbol something else")
%>

Attachments:

samplexml.html (265 bytes) (File Type Details)

Save it as .XML file

Answer : how to handle Encoding Format ,XML Parsing Error: not well-formed?

Set oXML = Server.CreateObject("MSXML2.DomDocument.6.0")
oXML.async = False: oXML.resolveExternals = False
Set oRoot = oXML.createElement("root")
oXML.appendChild oRoot

Do While Not Rs.Eof
Set oNode = oXML.createElement("heydon")
Set oSubNode = oXML.createElement("test")
oSubNode.text = rs(0)
oNode.AppendChild(oSubNode)
Set oSubNode = oXML.createElement("test")
oSubNode.text = rs(1)
oNode.AppendChild(oSubNode)
oRoot.AppendChild(oNode)

oRS.MoveNext
Loop