Enable I18N Support

What's effects "Enable I18N Support" to true?regards,
[75 byte] By [709139] at [2007-11-25 4:49:55]
# 1
In my case (language is Brazilian Portuguese), I canthen use the accented caracters. If this is disabled, characters like a' (a), e' (e) that are inside servlets and JSPs don't show up (actually, show as something else).
709140 at 2007-6-29 8:56:17 > top of Java-index,Application & Integration Servers,Application Servers...