Ajaxupload not working in IE9

I am facing one issue with IE9 for file upload as follows:

 

I have used one HTML button control. On click of that it is calling one Handler file by Ajaxupload.js. This functionality is working fine in all the browsers except IE9. In HTTPWatch of IE9, it is showing that the application is getting stuck in that Handler call, which is responsible for opening the file dialog. The application is hosted in Sharepoint2007. Please let me know if anyone have any solution for this.

 

Dependencies: SharePoint2007 running on Windows Server 2003, where we can’t install IE9. So not able to debug the application