Here is the web.config to show classic ASP (.asp files) in Azure, or in my case Windows Azure Pack with websites.
[code]
<configuration>
<system.webServer>
<asp scriptErrorSentToBrowser="true"/>
<httpErrors existingResponse="PassThrough"/>
<!–<httpErrors errorMode="Detailed"/>–>
</system.webServer>
</configuration>
[/code]
I commented out detailed error messages. With that enabled it would not show the classic ASP errors.