Most online guides tell you to simply drag-and-drop the mods folder into your D2R directory. For "v Top" users, this is suicide. Here is why the conventional wisdom fails:

| Component | Function | Detection Vector | |-----------|----------|------------------| | | NOPs out the CheckAccount and VerifyLicense calls | CRC check, API hooking | | Fake Battlenet.dll | Intercepts InternetOpenUrlA to redirect to localhost | IAT scanning | | Registry keys | Adds HKCU\Software\Blizzard Entertainment\D2R\Offline flag | Sysinternals ProcMon |

: The fix usually involves editing the Settings.json file. Users must set the "User Last Online" value to a massive number (often nineteen 9s: 9999999999999999999 ) to prevent future expiration.