Please uncopule TomTom from the Dailies guide
I already use TomTom. I have to jump through hoops in order to prevent my version of TomTom from being overwritten by the one included in the Guide Viewer installation.
I suggest that TomTom be removed from the Viewer .zip file and provided separately, or better still, a link to the author's site.
This can prevented by a drag and drop unzipping as opposed to a direct extract.
This way just drag only the Viewer folder and not the TomTom folder so it won't be overwritten.
I'm a holdover from the "old school", dating back to even BEFORE there as Microsoft! I tend to use the command prompt to do my installs with a program called "unzip" which does not have the feature you mention.