What versions of Microsoft Word is the Blurb add-in compatible with, and does it still work (or is compatible) on Windows 10?
There is no information about the add-in anymore. I have checked the official website and used the search feature to locate the plug-in, but it's nowhere to be found. It's either discontinued or not available for public use.
I recommend that you ask the developers through the following page: https://support.blurb.com/anonymous_requests/new?_ga=1.151815805.572792577.1455701489
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