yes. i am sure i don't have two copies as i used the integrated update feature to get 1.6.2. nonetheless, along with the cmd-click start, i used easyfind to see if i had any other copies of betterzip laying around the hard drive and as i expected, there was only one betterzip application to be found. i am pretty careful with this stuff anyway so i also went the rebuild launch services database route to see if that changed anything, alas, it did not. hmmm...