As silly as this article is it took me a bit to find how to stop Skype from starting automatically on my Mac running OSX Lion. I have been running Skype version 4.X because the new Skype versions, specifically Skype 5.X, has really taken many steps backwards on the Mac in my opinion. I am so fed up with Skype on the Mac I am considering stopping to use Skype at all. Not only can you not stop Skype from starting automatically via the Skype Preferences window anymore but the new UI (User Interface) for Skype in Skype versions 5.X+ is horrible. Gone are the days where you could actually not have Skype engulf your entire screen or when Skype was actually useful for certain things. I definitely feel as if they stopped putting the do not start Skype on login outside of the Preferences configuration window simply to make it harder to find.
The newer versions of Skype, which include version 4 and above, appear to not provide a way to list or delete voicemail messages. There are two options I have come up with to resolve the issue of managing Skype voicemail messages. I would think that Skype will resolve this issue in the near future however it has already taken longer than I would have thought to provide a solution to users to manage voicemail. I am currently running Skype version 22.214.171.124 so the below information is based off of that Skype version which at the time of writing this article is the most current. I recommend using option two which includes a third party piece of software so you still get the benefits of the latest release of Skype.