Does it mean that a third party (through Adobe) can put a virus in my PC and Adobe is not responsible of it?
I immediately uninstalled Adobe Reader X. Then I saw Adobe AIR has got the same license. I uninstalled it too. And then, scared, I uninstalled Adobe Flash Player too.
I'll never accept a license in which I allow to a third party to send me "electronic content" with "other technologies". I think this part should be reformulated. For example, before opening a pdf with ads, you could be warned: "you are going to open an ad-pdf. Are you sure you want to risk the security of you computer?". Meanwhile, I'll search for old versions of Adobe Reader or any other free pdf reader with a more decent license.
By the way: the license should be displayed BEFORE installing the program, not after. I'd have saved a lot of time, installing, uninstalling... recovering the old version, ...