Terry -
Yes, that is how we originally verified the enterprise library exception handling was working...
By implementing simple logging events, I've confirmed this morning that the exception is not occuring within the ajaxUploader_OnFileUploaded eventhandler... We are not getting any informational event logs that indicate we are even getting into the eventhandler, so the OnFileUpload event may not be fired from within the AjaxUploader control.
Thanks,
Casey