If the menu termXact is not displayed in the menu bar, please check in the ControlPanel => Programs=> programs and features if the AddIn of termXactexists.
In case it doesn’t exist, the installation has failed. Then execute the installation again.
In case it is listed, please check the MS-Office AddIns. In the MS-Office programs it has to be listed as COM-AddIn under File =>Options =>AddIns.