Thread:Extension talk:PageAttachment/Network Error while downloading an attachment

Hi All, When I try to download an attachment, it says, it is starting but that it ends up with a network error. Here is the url I see for an attachment. http://localwiki/extensions/PageAttachment/download/Download.php?rvt=0131b0ac20b8d1784fb6aa57cb31e6a4a3f8938cb3e5453410b291ee328fb8bb&downloadFileName=Book1.xls

I am using IIS. Is there any settings I need to changes in order for it to work?