How to view source IE6 using other app

Anyone know how to view source in IE6 using an application other than Notepad? By default when you click on view, source the source code comes up in Notepad. I would like to use UltraEdit32 for viewing the source code I have written and am testingin IE. You can not do this by modifying the file associations in Windows Explorer. I have already tried this. Thanks for any help.