Hi I use the following snippet of PHP code to initiate a download. ob_start (); header ( "Content-Type: application/octet-stream" ); header ( 'Content-Disposition: attachment; filename=' . $file_name ); header ( "Content-Length: $file_size" ); ob_end_flush (); readfile ( $folder . "/" . $file_name ); This worked previously with IE8,7 and still works with fireFox and chrome. In IE9 nothing happens and no error messages etc. are shown. Previous versions of IE would show the Information Bar or similar and then allow downloading to occur based on user action (click the bar to allow etc.). This is http, not https. What do I have to do to make this work with IE9 Richard Williams

Hi, According to your description, I suggest to ask IE development Forum for further help: http://social.msdn.microsoft.com/Forums/en/iewebdevelopment/threads The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thank you for your understanding. Regards, Leo Huang TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.comPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks. I've asked the same question in the forum you suggested.