Hi,
By default, Trackback URL for your posts takes the form of
http://your/blog/url/wp-trackback.php/<<post_id>>
Though this will work on *nix /Apache, it breaks on IIS/Windows. To fix the problem, open function trackback_url in wp-includes/template-functions-comment.php.
Replace line
'$tb_url = get_settings('siteurl') . '/wp-trackback.php/' . $id;'
with
//Determine if WP is hosted on Windows/IIS.
$is_IIS = strstr($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') ? 1 : 0;
if($is_IIS)
{
$tb_url = get_settings('siteurl') . '/index.php?p=' . $id;
}
else
{
$tb_url = get_settings('siteurl') . '/wp-trackback.php/' . $id;
}
Hope this helps someone,
JD