I'm looking at some fairly recent questions and responses, but don't see a solution! I accidentally deleted the program as well (trying to gain memory and knowing I didn't have an Apple product -- who knew???). I cannot view some of my movies and have reinstalled Quicktime. I saw one solution, but do not know how to find a "compression program such as WinRAR" nor how to extract the file "AppleApplicationSupport.msi." Thanks for help! 'Be back after the game!