Solved Problem starting the game

Hello and welcome,
I suggest doing a clean re-install of the game by following the steps below and make sure you are using the correct game version which is 1.13c

- Delete any diablo game folder you may have previously installed, multi clients and corrupted registry files are usually the root cause of game-related problems
- Open the start menu or hit the windows key, type regedit.exe then find and delete the following folder HKEY_CURRENT_USER\Software\Blizzard Entertainment\Diablo II
- Run DiabloII_113c_Portable and extract the game into a different folder this time, let's name it C:\Games\Diablo2Europe
- Run EuropeBattleInstaller.exe and select your game folder or get the EuropeBattle.zip archive and replace files manually
- Set compatibility mode to XP Service Pack 2 and check Run as Administrator for all the executable files
- Run the game icon located on your desktop or you can manually create a shortcut of Game.exe to your desktop and run the game in window mode as shown here.

http://europebattle.net/d2/join