We are using a 3rd party control that renders a diary view. This has been running successfully cross browser under WS2003 II6 for three years.
When migrating it to WS2008sp2 IIS7.5 we get a SCRIPT5009 "xxxx" is undefined error on some machines but not all. It would appear that the script is not being servered, however a good percentage of machines display the control without issue.
This is true in IE8, IE9 and firefox. It would also appear that the machines that can use the control are using an established URL but if we provide a different URL they too fail until we switch it back, cacheing?.
We have switched on CGI and ISAPI, is there something else we need to do to force this script to serve? How should IIS7 be configured to handle this?
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