I just cannot resolve this.
I have implemented the wp-404-handler.php as per: http://tech.einaregilsson.com/2007/07/30/pretty-wordpress-permalinks-on-iis/
and I incl categories & tags. My frontpage is fine, but as soon as I hit a link I get a 502 gateway error.
I read through the forums, but can't find a solution even though it is clear that loads of wordpress users on IIS have been able to implement pretty permalinks.
Tks for any ideas you might have.