First of all: thanks for the plugin, it makes Notepad++ a much more serious XML editor than it would be otherwise.
I am trying to use Notepad++ with XML Tools to validate a file written in a custom, DocBook-based format. However, the XML Tools don't seem to be able to find the DTD for the document.
Is there a special place where I can put the DTD/an XML Catalog referring to it?
Also, there does not seem to be a way to reference the DTD manually, all that appears is the somewhat unhelpful message "Unable to load the DTD xyz.dtd".