private static string CustomPath = null;

private static string CustomPath = @"C:\UO";

using System;
using System.IO;
using Microsoft.Win32;
using Server;

namespace Server.Misc
{
    public class DataPath
    {
        /* If you have not installed Ultima Online,
         * or wish the server to use a separate set of datafiles,
         * change the 'CustomPath' value, example:
         * 
         * private const string CustomPath = @"C:\Program Files\Ultima Online";
         */
        private static string CustomPath = @"C:\Program Files\EA GAMES\Ultima Online Mondain's Legacy";

        /* The following is a list of files which a required for proper execution:
         * 
         * Multi.idx
         * Multi.mul
         * VerData.mul
         * TileData.mul
         * Map*.mul
         * StaIdx*.mul
         * Statics*.mul
         * MapDif*.mul
         * MapDifL*.mul
         * StaDif*.mul
         * StaDifL*.mul
         * StaDifI*.mul
         */

        public static void Configure()
        {
            string pathUO = GetPath( @"Origin Worlds Online\Ultima Online\1.0", "ExePath" );
            string pathTD = GetPath( @"Origin Worlds Online\Ultima Online Third Dawn\1.0", "ExePath" ); //These refer to 2D & 3D, not the Third Dawn expansion
            string pathKR = GetPath( @"Origin Worlds Online\Ultima Online\KR Legacy Beta", "ExePath" ); //After KR, This is the new registry key for the 2D client
            string pathSA = GetPath( @"Electronic Arts\EA Games\Ultima Online Stygian Abyss Classic", "InstallDir" );

            if ( CustomPath != null ) 
                Core.DataDirectories.Add( CustomPath ); 

            if ( pathUO != null ) 
                Core.DataDirectories.Add( pathUO ); 

            if ( pathTD != null ) 
                Core.DataDirectories.Add( pathTD );

            if ( pathKR != null )
                Core.DataDirectories.Add( pathKR );

            if ( pathSA != null )
                Core.DataDirectories.Add( pathSA );

            if ( Core.DataDirectories.Count == 0 && !Core.Service )
            {
                Console.WriteLine( "Enter the Ultima Online directory:" );
                Console.Write( "> " );

                Core.DataDirectories.Add( Console.ReadLine() );
            }
        }

        private static string GetPath( string subName, string keyName )
        {
            try
            {
                string keyString;

                if( Core.Is64Bit )
                    keyString = @"SOFTWARE\Wow6432Node\{0}";
                else
                    keyString = @"SOFTWARE\{0}";

                using( RegistryKey key = Registry.LocalMachine.OpenSubKey( String.Format( keyString, subName ) ) )
                {
                    if( key == null )
                        return null;

                    string v = key.GetValue( keyName ) as string;

                    if( String.IsNullOrEmpty( v ) )
                        return null;

                    if ( keyName == "InstallDir" )
                        v = v + @"\";

                    v = Path.GetDirectoryName( v );

                    if ( String.IsNullOrEmpty( v ) )
                        return null;

                    return v;
                }
            }
            catch
            {
                return null;
            }
        }
    }
}