Sorry for the geeky title but when I came across this over on Boing Boing it struck me that licensing is going way, way beyond contract theory in an attempt to control the rights over the users. From Boing Boing:
The Software may contain third party software which requires notices and/or additional terms and conditions. Such required third party software notices and/or additional terms and conditions are made a part of and incorporated by reference into this EULA. By accepting this EULA, you are also accepting the additional terms and conditions, if any, set forth therein.
Most EULAs (end user license agreements) tend to make sure that the user has little or no rights at all. EULA’s can also conveniently be changed without notifying the user of the changes. This means that the software user should consider herself lucky if her equipment works at all.
The example above goes beyond that. By agreeing to the EULA you also agree to any terms or conditions of third party software the original company may choose to install. This makes it impossible for the user to even attempt to control her rights against the software manufacturers.
For more on EULA’s see, for example, this article I wrote on Spyware.