Vista protects all folders inside C:\Program Files by making them read only, to reduce the chances of virus infection and accidental modification/deletion. 
 
You can open a version of Notepad with file-modification privileges by right-clicking the Notepad icon in Start Menu\Accesories and choosing "Run as Administrator". 
 
Then you can browse to and change your eqhost.txt file as desired. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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