I currently own a license & use ViewMasterEZ under Ubuntu 6.10. I have previously used the same under 6.06 with the same success. I can say the application thus-far is working with no issue. Installation will complain that a component failed to register BUT THE APPLICATION WILL FUNCTION WELL.
I recommend copying the license file to that application's "bottle" (as I have done).
I have observed no other issues as of yet and am testing each function carefully.
Juan