Embedding a Game(custom EXE) inside a C# Forms Application

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C#

Windows

.NET

WinForms

C#4.0

, +

Hello CodeProject,
I want to embed a game(like : GTA etc.) inside my Forms Application, I know how you do it with simple Windows Forms Applications using the following Code ::

using System.Diagnostics;
using System.Threading;
using System.Runtime.InteropServices;
//<JUMPING TO BUTTON_1 CLICK>
/////////////////////////////////.........................................................\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
 private void button1_Click(object sender, EventArgs e)
        {
            try
            {
            Process p = Process.Start(textBox1.Text,textBox1.Text);
            p.WaitForInputIdle(); // Allow the process to open it's window
            SetParent(p.MainWindowHandle, panel1.Handle); //Set the Windows Parent as Panel1
                
            }
            catch (Exception ex)
            {
                MessageBox.Show("ERROR DUDE!!!!!\n" + ex.Message);
            }
        }
        //Import a DLL called User32.dll for catching the Form
        [DllImport("user32.dll")]
        static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

It works for Normal Applications like Notepad,QEMU etc.
But for complex applications like Games,Browsers,etc. I get the following problems
1) For mostly Games, They are Not able to load resources properly, for instance take IGI,
when I start igi2.exe from my application I get a error message saying

"COULD NOT LOAD FILE : LOCAL:weapons.res"

Same goes for Games that require resources to be loaded from HDD.
2)When I start chrome,iexplore,explorer.exe or any such complex application my Form is unable to catch it. Also My error handler show the following message(sometimes) :

"ERROR DUDE!!!!!!!!!!!!!!!!!
Process has exited"

Any Solution/Suggestion to this?
Any help would be appreciated

~Sids123