[Release] [C#] MapleLauncher - Custom Launcher

iwtLive · Jul 7, 2015

SYJourney said:
It's all explained in the github description, that's why minike linked it in his reply earlier.

I've read it again just to make sure that my answer is not there,
I asked where I could direct the packet to it's handler of the server side.
What Fraysa gave was the example of how we should handle it.

Am I missing something?

SYJourney · Jul 7, 2015

dorkie4ever said:
I've read it again just to make sure that my answer is not there,
I asked where I could direct the packet to it's handler of the server side.
What Fraysa gave was the example of how we should handle it.

Am I missing something?

This is how it should go: Put the opcode in your recv opcodes. Then add a handler for that opcode, then code that handler. That should do it? About the opcode, it's in the c# code for the launcher.

iwtLive · Jul 7, 2015

SYJourney said:
This is how it should go: Put the opcode in your recv opcodes. Then add a handler for that opcode, then code that handler. That should do it? About the opcode, it's in the c# code for the launcher.

I tried looking for it I found "0x0999" in this line:

PHP:

using (OutPacket outPacket = new OutPacket(0x0999))

Tried seeing If I was getting any response by doing what you said:

- Added it as a RECV OpCode

PHP:

WZ_CHECKSUM(0x0999),

- Registered it in the PacketProcessor

PHP:

registerHandler(RecvOpcode.WZ_CHECKSUM, new WzChecksumHandler());

- And then I just wrote a simple code to see if I was getting any response

PHP:

public class WzChecksumHandler implements MaplePacketHandler {
       
    @Override
    public void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
        System.out.println(slea.toString());
    }

    @Override
    public boolean validateState(MapleClient c) {
        return true;
    }
    
}

But nothing happened so it's safe to assume that it's not the OpCode right..?

--Update--

MapleShark seems to show only the HandShake packet at client triggering.. even though I made sure that the IP and the Port were correct.

Fraysa - [Release] [C#] MapleLauncher - Custom Launcher - RaGEZONE Forums

MapleShark should also be showing the new packet, right?
Did anyone get this to work yet?

SYJourney · Jul 10, 2015

Hello, I tried to modify your launcher a bit to see if I could atleast test the hash thing. I tried to remove the client stuff so that it's just the launcher connecting to the server. But I've hit another error, and worse I don't know if this is an error that happens because I fked up something or something else?

It seems the error is on the first packet the server sends, but I cannot figure out why it says Null for it, because I do get values: here is what I get if I add another message box to show the ServerInfo's values:

Hope you guys can help me, I don't know how to work with C#, thanks!

Minike · Jul 10, 2015

SYJourney said:
Hope you guys can help me, I don't know how to work with C#, thanks!

Fraysa uses the keys from MapleShark, which does not includes any keys below v120, so it is not backwards compatible with v83.
Why are you trying to use a redirect client for v83 anyway?

SYJourney · Jul 10, 2015

Minike said:
Fraysa uses the keys from MapleShark, which does not includes any keys below v120, so it is not backwards compatible with v83.
Why are you trying to use a redirect client for v83 anyway?

Oh ok, no wonder then. I just wanted to play around with it for a bit, I have never done anything in c# so i thought I'd be fun to try this out.

Minike · Jul 10, 2015

SYJourney said:
Oh ok, no wonder then. I just wanted to play around with it for a bit, I have never done anything in c# so i thought I'd be fun to try this out.

Well, the correct key for v83 is 0x130806B41B0F3352, you can add them in MapleKeys.cs, see #53

Fraysa · Jul 10, 2015

In order to use older versions you would also have to enable UseMapleEncryption in Program.cs.

SYJourney · Jul 10, 2015

Minike said:
Well, the correct key for v83 is 0x130806B41B0F3352, you can add them in MapleKeys.cs, see #53

It finally, worked, thanks for this!

EvjmME0 - [Release] [C#] MapleLauncher - Custom Launcher - RaGEZONE Forums

iwtLive · Jul 10, 2015

SYJourney said:
It finally, worked, thanks for this!

For v83 moopleDev does the keys go in like this?

PHP:

            MapleKeys.Add(Localisation.Global, 83, 1, new byte[] {//0x130806B41B0F3352
                0x13, // Full key's lost
                0x08,
                0x06,
                0xB4,
                0x1B,
                0x0F,
                0x33,
                0x52,
            });

SYJourney · Jul 10, 2015

dorkie4ever said:

For v83 moopleDev does the keys go in like this?

PHP:

            MapleKeys.Add(Localisation.Global, 83, 1, new byte[] {//0x130806B41B0F3352
                0x13, // Full key's lost
                0x08,
                0x06,
                0xB4,
                0x1B,
                0x0F,
                0x33,
                0x52,
            });

yeah looks good

iwtLive · Jul 10, 2015

SYJourney said:
yeah looks good

still getting no response, would you mind sharing how you troubleshooted it o:

SYJourney · Jul 11, 2015

dorkie4ever said:
still getting no response, would you mind sharing how you troubleshooted it o:

I don't really know how to help you, because I didn't do anything special. The only problem I had was that the keys were incorrect and you have these now. I guess if you want to see where your problem is, you'll just have to debug the program.
If the packet is not being sent, I'm assuming some an error happens before it gets to the getHash function because that one worked.
If the packet is being sent but you don't get any response, make sure you handled it correctly, and also check your logs if maybe an error occured while handling it (if the packet processor hit's an error, it won't continue the packet).

iwtLive · Jul 11, 2015

@Fraysa
Any idea why this is happening?

Exception thrown: 'System.ArgumentException' in System.dll
25.97.221.45:8484 disconnected! Called by:
at System.Environment.GetStackTrace(Exception e, Boolean needFileInfo)
at System.Environment.get_StackTrace()
at MapleLauncher.Net.Session.OnDisconnectINTERNAL() in C:\Users\David\Documents\Visual Studio 2015\Projects\ms-MapleLauncher-master\MapleLauncher\Net\Session.cs:line 316
at MapleLauncher.Net.Session.EndReading(IAsyncResult pIAR) in C:\Users\David\Documents\Visual Studio 2015\Projects\ms-MapleLauncher-master\MapleLauncher\Net\Session.cs:line 177
at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Net.ContextAwareResult.Complete(IntPtr userToken)
at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)

Dynamik · Jul 11, 2015

dorkie4ever said:

For v83 moopleDev does the keys go in like this?

PHP:

            MapleKeys.Add(Localisation.Global, 83, 1, new byte[] {//0x130806B41B0F3352
                0x13, // Full key's lost
                0x08,
                0x06,
                0xB4,
                0x1B,
                0x0F,
                0x33,
                0x52,
            });

There is actually no real need for this, since MoopleDEV has the key in there. It is known as byte key[] in MapleServerHandler.

TylerTran · Jul 15, 2015

Hey guys I get this error when I launch the launcher please help me.

Code:

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.


************** Exception Text **************
System.IO.FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified.
File name: 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'
   at MapleLauncher.Utilities.JsonUtilities.Deserialize[T](String value)
   at MapleLauncher.frmMain.LoadConfig()
   at MapleLauncher.frmMain.frmMain_Load(Object sender, EventArgs e)
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].






************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
MapleLauncher
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Users/Nhiem/Desktop/MapleViet/MapleLauncher.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------


************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.


For example:


<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>


When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Fraysa · Jul 15, 2015

TylerTran said:

Hey guys I get this error when I launch the launcher please help me.

Code:

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.


************** Exception Text **************
System.IO.FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified.
File name: 'Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'
   at MapleLauncher.Utilities.JsonUtilities.Deserialize[T](String value)
   at MapleLauncher.frmMain.LoadConfig()
   at MapleLauncher.frmMain.frmMain_Load(Object sender, EventArgs e)
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].






************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
MapleLauncher
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Users/Nhiem/Desktop/MapleViet/MapleLauncher.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------


************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.


For example:


<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>


When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Make sure Newtonsoft.Json.Net.dll is located at the same folder as your launcher.

TylerTran · Jul 15, 2015

Hi, the Newtonsoft.Json.Net.dl you provided is not the same as the one built. Your version is 6.0.0 but inside the folder its 7.0.0. Where can I get Newtonsoft.Json.Net.dl version 7.0.0 ?. Thanks

It work now. But it cannot process through waiting for maplestory. Its been like this for 10 mins already.

TylerTran · Jul 16, 2015

I'm now getting this error please help.

Code:

************** Exception Text **************System.NullReferenceException: Object reference not set to an instance of an object.
   at MapleLauncher.frmMain.btnStart_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)




************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
MapleLauncher
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Users/Nhiem/Desktop/MapleViet/MapleLauncher.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Newtonsoft.Json
    Assembly Version: 7.0.0.0
    Win32 Version: 7.0.1.18622
    CodeBase: file:///C:/Users/Nhiem/Desktop/MapleViet/Newtonsoft.Json.DLL
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
System.Runtime.Serialization
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Serialization/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
System.Xml.Linq
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.Linq.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_64/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------


************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.


For example:


<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>


When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Fraysa · Jul 16, 2015

TylerTran said:

I'm now getting this error please help.

Code:

************** Exception Text **************System.NullReferenceException: Object reference not set to an instance of an object.
   at MapleLauncher.frmMain.btnStart_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)




************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
MapleLauncher
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Users/Nhiem/Desktop/MapleViet/MapleLauncher.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Newtonsoft.Json
    Assembly Version: 7.0.0.0
    Win32 Version: 7.0.1.18622
    CodeBase: file:///C:/Users/Nhiem/Desktop/MapleViet/Newtonsoft.Json.DLL
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
System.Runtime.Serialization
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Serialization/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
System.Xml.Linq
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.Linq.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.6.57.0 built by: NETFXREL2
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_64/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------


************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.


For example:


<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>


When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

This is a NullReferenceException... I can't really help you, you'd have to debug it yourself.

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[Release] [C#] MapleLauncher - Custom Launcher

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