hi Chispa,

The uploader support to use with IE 10. You can try on http://www.ajaxuploader.com/Demo/select-multiple-files-upload.aspx.

Property UploadTypePriority use to set the  upload mode priority. The uploader control support html5,silverlight, flash,Iframe.

IE 10 browser support to use html5 by default. Not sure what problem you got with it. maybe you can explain the issue in detail?

Regards,

ken