Ugyldig karakter i xml-fil

Fandt selv et eksempel som jeg fiflede til:
' Declare a streamwriter object
Dim strwriterobj As StreamWriter


' Create a text File and assign this textfile obj to streamwriter
' Object created above
strwriterobj= File.CreateText("c:\aspnet.txt" )


' write some content to the text file created above
strwriterobj.WriteLine( "Some textto write" )


' we are done with the file so close the stream object
strwriterobj.Close

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