Before updating termXact please uninstall the current AddIn by using the Control Panel => Programs => Remove Programs.
After that the new program version can be installed (see chapter 1.1).
If the new version contains changes to the configuration, the new configuration has to be loaded once (see configuration manual).
After completion the updated version of termXact is ready to be used.
termXact appears as a new item in the menu bar after starting the MS-Office program.