I need to add additional document types to the Default.config file at runtime, either by Javascript or in VB codebehind when the page loads.
Currently, Default.config has:
<security name="TemplateFilters">
<item>.txt</item>
<item>.rtf</item>
<item>.html</item>
<item>.htm</item>
<item>.xml</item>
</security>
I need to add a special type.
How to do that?