During installation from the original 3-CD set, the setup wizard would halt and prompt: “Please enter your CD Key.” Without this key, the installation could not proceed. This was Sierra’s implementation of SafeDisc or SecuROM—early forms of copy protection designed to prevent casual piracy.
The CD key for SWAT 3: Under Siege is a 20-character code found on the game's packaging or in the confirmation email if purchased digitally (though digital purchases are less common for such old games). The key is used during the installation process to: Swat 3 Cd Key
: Includes 27 missions set in L.A. landmarks like the sewer system, the Convention Center, and LAX. Go to product viewer dialog for this item. During installation from the original 3-CD set, the