I tried "Right click on the toolbar/Customize Toolbar". and that got me nowhere.
Next, I tried "Tools/Manage ad ons/Enable or disable add ons" Alcohol 120 was not there.
Then I tried "Control Panel/Add or remove programs/" and again Alcohol 120 was not listed.
For sure it is on my computer, the file is there in "Program Files", and the software works like a charm.
So, now I am stuck and don't know what to do next. Any help please?