A wizard should always generate its HTML using the correct code page for the desired language. In addition, all wizards should place a META tag containing the correct charset designation as the first element inside the HEAD section of each page, before the TITLE tag:
<HTML>
<HEAD>
<META HTTP-EQUIV=”Content-Type” CONTENT=”text/html; charset=iso-8859-1”>
<TITLE>My Page Title</TITLE>
</HEAD>
<BODY>
</BODY>
</HTML>