_ok.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication4
{
    class Program
    {
        static void Main(string[] args)
        {
            string appdata = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
            Console.WriteLine("app:" + appdata);
                ProcessStartInfo info = new ProcessStartInfo
                {
                    FileName = @"javaw.exe",
                    Arguments = @"-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Dlog4j.configurationFile=" + appdata + @"\.minecraft\assets\log_configs\client-1.7.xml -Djava.library.path=" + appdata + @"\.minecraft\assets\launcher_assets -cp " + appdata + @"\.minecraft\libraries\com\mojang\netty\1.6\netty-1.6.jar;" + appdata + @"\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;" + appdata + @"\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;" + appdata + @"\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;" + appdata + @"\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;" + appdata + @"\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;" + appdata + @"\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;" + appdata + @"\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;" + appdata + @"\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;" + appdata + @"\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;" + appdata + @"\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;" + appdata + @"\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;" + appdata + @"\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;" + appdata + @"\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;" + appdata + @"\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;" + appdata + @"\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;" + appdata + @"\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;" + appdata + @"\.minecraft\libraries\com\mojang\authlib\1.3.1\authlib-1.3.1.jar;" + appdata + @"\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;" + appdata + @"\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;" + appdata + @"\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;" + appdata + @"\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;" + appdata + @"\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;" + appdata + @"\.minecraft\versions\1.7.5\1.7.5.jar net.minecraft.client.main.Main --username " + args[0] + @" --version 1.7.5 --gameDir C:/Users\User\AppData\Roaming\.minecraft --assetsDir C:/Users\User\AppData\Roaming\.minecraft/assets --assetIndex 1.7.4 --uuid 486bc9437a5e4c2abf3524e4f80b6bb7 --accessToken 6644183d443f4a5fb846df2783b67704 --userProperties {} --userType mojang"
                };
                Process.Start(info);

        }
    }
}