1=Must provide a mime type or handler name and a single extention. eg: <b>text/html</b> or <b>cgi-script</b> and <b>html</b>
2=Only provide one extension at a time. eg: <b>jpg</b> and NOT <b>jpg jpeg jpe</b>
3=Invalid name or extension
4=Handler
5=Extensions
6=MimeType
7=Select
8=With Selected
9=Delete Extension
10=Delete Handler
11=Delete MimeType
12=or
