Forum Moderators: phranque
1. In IIS, change the 404 error page to type URL, and type in the full URL of your home page. Done!
2. Like you said, you should be able to change the 404 error page to type FILE, and then select an HTML page of your choosing. In the HTML page, make:
<script>
document.location.href='http://www.website.com/';
</script>
It might just be a syntax error if you think you already tried this . . just double check everything. I use custom 404 pages on several ASP/IIS sites without a problem.