Looks like this has happened due to the corruption of the .msi files in your Acer Server.
Please call up the Technicall Support ( Yes, Yet again please. I know you are not too happy but trust me. You have PAID for the software and it is your right to extract the services that you are entitled for).
Ask for the following .msi files and after you place them under teh Shared / Add ins folder, You will be able to see the McAfee Add in the Console.topwhsaddIn4.9ACER.msibuild # 184.108.40.206.8I hope the above helps.Sameer