Adding dictionary to 8.5.2 client install

I’ve tried adding an additional dictonary to my 8.5.2 client install.

I’ve downloaded the latest XTAF dictionaries and renamed the one I want to “updatesite.zip”

I’ve created an install.xml using "unzip -i c:\dictionary\updatesite.zip install.xml c:\dictionary\deploy

And I’m trying to add this to the install by running:

addtokit.exe c:\dictionary c:\install

But I keep getting the following error:

Source zip c:\dictionary\notes.toolbox.updatesite.zip does not exist

Anyone got any ideas how to fix this?