Regular expression to restrict Extended ASCII character set

Question

I have multi lingual application which creates xml files but Extended ASCII characters from 168 to 254 (¿⌐¬½¼¡«»░▓│┤╡╢╖╕╣║╗╜╛┐└┴┬├) are not supposed in XML tags so, I would like

Answer 1

Although @Oded suggest was applicable but I used following solution:

Dim filteredInput as string

Private const XML_RESTRICTED_CHARACTERS as string ="[☺☻♥♦♣♠•◘○◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼#$%&()*+,-./:;<=>?@[\]^_`¢£¥₧ƒªº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■""}{]"

filteredInput =Regex.Replace(strInput.ToLower(), XML_RESTRICTED_CHARACTERS, "")