The game required a permanent internet connection to play, even for the single-player campaign. Game Interruptions:
If a user's internet connection dropped for even a second, the game would immediately pause or kick the player back to the main menu, often causing a loss of unsaved progress. Assassins Creed 2 NoDVD 1.01 SKIDROW FIX AUTO
The "NoDVD 1.01 SKIDROW FIX AUTO" specifically refers to an automated installer or updated version (1.01) that simplified the process of applying these modified files to the game's directory. Legacy and Impact TweakGuides.com - Assassin's Creed 2 DRM The game required a permanent internet connection to
While early attempts to bypass the DRM involved "server emulators" that tricked the game into thinking it was connected, the group Assassins Creed 2 NoDVD 1.01 SKIDROW FIX AUTO