Actually, RTFM almost doesn't cover this. The xLabel docs were omitted the "load..." bit for at least one release. You'd have to also have read the NLM docs to know how to handle it.

You'll probably want to delete the existing xlabel dll (and folder) and let NLM install it, from the zip or whatever. (which reminds me, I need to make it so you can select a zip to install from)