When serving old browsers (like Internet Explorer 8) from 1.6, the generated Table of Contents don't work if the header contains accented characters.

The solution is to edit the xpWikiStyle lib to use ISO-8859-1 instead of UTF-8 encoding, and change the use of the wikiParser class inside com.ibm.domino.xsp.wiki package to a new class inside your own package, in which you set the encoding for the generated anchors also to ISO-8859-1 instead of UTF-8

Made some of my users very happy.