http://blogs.msdn.com/b/webdevelopertips/archive/2009/08/24/tip-93-did-you-know-php-and-custom-error-pages-configuration.aspxWhen deploying PHP web applications that handle their errors with their own error pages, the existingResponse for Custom Error Pages feature of IIS should be set to “ PassThrough ” for that particular site. This greatly improves the customer experienceen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/webdevelopertips/archive/2009/08/24/tip-93-did-you-know-php-and-custom-error-pages-configuration.aspx#9910474Wed, 21 Oct 2009 10:10:35 GMT91d46819-8472-40ad-a661-2c78acb4018c:9910474Olivier Garbé<p>Hello,</p> <p>the problem I see is with the 500 error (max execution time for example) which won't be a friendly page.</p> <p>Do you know how to disable IIS custom error for 404 and enable it for 500 ?</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=9910474" width="1" height="1">