I called MS to find out how I add the Office 2010 KMS to the KMS server and the rep had no idea why it was not working because he verified that the KMS Key I was using was valid and functional. Once the user connect to the network with the KMS host the error will go away and the re-activation process will be transparent to the end user. Also, if a client is off of the network and does not contact the KMS server after 180 days the user will receive a message when they open Office stating that the product is unlicensed, however, it will continue to work with no loss of functionality. The KMS Host key for Office 2010 is somewhat different than that of the client OS's, as it will only take 5 users running Office 2010 for the KMS to activate them, as compared to the 25 hosts required for client OS's. Zimbra Network Edition Keygen Rating: 3,5/5 9943reviews