Just curious if it's actually detecting Office 2013 as Office 2010, or the machines previously had 2010 on them and the plug in is seeing that install, and missing the Office 2013 install completely. I have a couple of machines here that were upgraded from 2010 to 2013 and the plug-in only detects the original 2010 information. I believe the 2013 information does not show up because the full license key is no longer stored in an easily extractable manor in the registry. I've been tinkering with the plug-in script to at least extract the last 5 chars of the license key, which seems to be now the limit of what Microsoft will allow. I guess they are trying to prevent inappropriate license key mining.