REQUIRED STEPS:

  Setting up the realm gateway
    1. Run "Install RoC" as administrator
    2. Press 1 for installing the gateway.
  For uninstalling (follow this, if you want to uninstall, otherwise ignore it)
    1. Press 2 for uninstalling the RoC gateway, and using your original realm gateways.
    2. Press 3 for reverting your realm gateways to the default realm gateways when installing the game.

  Installing the realm patch
    1. Right click your current Diablo II shortcut.
    2. Click properties
    3. Click the "Shortcut" tab in Diablo II properties.
    4. Click "Open File Location" in the "Shortcut" tab.
    5. Locate "patch_d2.mpq" file and rename it to be "patch_d2_original.mpq" (Make sure Diablo II is closed for this)
    6. Extract the "patch_d2.mpq" file provided in "RoC.zip" into your Diablo II Folder.
    7. Then you're finished, just select RealmOfCain gateway in gateway selection, and connect!

OPTIONAL STEPS:

  How to install for multiple d2 windows. (Windows only, 1.14d patch only)
    1. Right click your current Diablo II shortcut.
    2. Click properties
    3. Click the "Shortcut" tab in Diablo II properties.
    4. Click "Open File Location" in the "Shortcut" tab.
    5. Locate "Game.exe" file and rename it to be "Game.original.exe" (Make sure Diablo II is closed for this)
    6. Extract the "Game.exe" file provided in "RoC.zip" into your Diablo II Folder.
    7. You should be good to go, if you want to uninstall, just delete "Game.exe" and rename "Game.original.exe" to "Game.exe"