Dear members,

I'm new to C# and stucked somewhere.
What i'm trying to do is editing a source code of a runas tool.
It is a tool where you need to type your domain user name and password and select a program to run it as the domain user.
I've got only 1 button (called button1) on the control panel.
Because it isn't in the form i can't apply an AcceptButton for it.
My question; what do i need to do to capture the enter key and run the button1 (application)

Here is the source code;

Code:
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Text;
using VastAbyss;

namespace VastAbyss.Controls.WinForms.General
{

	/// <summary>
	/// Error is the Win32Exception.Message thrown.
	/// </summary>
	public delegate void ProcessFailedEventHandler(string error);
	/// <summary>
	/// Process is the ID of the process that exited.
	/// </summary>
	public delegate void ProcessEndedEventHandler(int process);
	/// <summary>
	/// Process is the ID of the process that started.
	/// </summary>
	public delegate void ProcessStartedEventHandler(int process);
	/// <summary>
	/// Error is the Win32Exception.Message thrown.
	/// </summary>
	public delegate void ProcessAccessFailedEventHandler(string error);

	/// <summary>
	/// Control that makes use of VastAbyss.RunAs.StartProcess() to create a process
	///  under different user credentials.
	/// </summary>
	public class RunAsControl : System.Windows.Forms.UserControl
	{
        private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button button1;
        private Label label4;
		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;



		public RunAsControl()
		{
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();
		}

		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}


		/// <summary>
		/// ProcessFailed is fired if an exception is thrown when attempting to start the
		///  process.
		/// </summary>
		//public event ProcessFailedEventHandler ProcessFailed;
		/// <summary>
		/// ProcessEnded is fired where the started process exits.
		/// </summary>
		//public event ProcessEndedEventHandler ProcessEnded;
		/// <summary>
		/// ProcessStarted is fired if the process successfully starts.
		/// </summary>
		//public event ProcessStartedEventHandler ProcessStarted;
		/// <summary>
		/// ProcessAccessFailed is fired if the current user does not have permission to
		///  access the new process.
		/// </summary>
		//public event ProcessAccessFailedEventHandler ProcessAccessFailed;

		#region Component Designer generated code
		/// <summary> 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.panel1 = new System.Windows.Forms.Panel();
            this.label4 = new System.Windows.Forms.Label();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.textBox4 = new System.Windows.Forms.TextBox();
            this.textBox3 = new System.Windows.Forms.TextBox();
            this.textBox2 = new System.Windows.Forms.TextBox();
            this.label3 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label1 = new System.Windows.Forms.Label();
            this.button1 = new System.Windows.Forms.Button();
            this.panel1.SuspendLayout();
            this.SuspendLayout();
            // 
            // panel1
            // 
            this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.panel1.Controls.Add(this.label4);
            this.panel1.Controls.Add(this.textBox1);
            this.panel1.Controls.Add(this.textBox4);
            this.panel1.Controls.Add(this.textBox3);
            this.panel1.Controls.Add(this.textBox2);
            this.panel1.Controls.Add(this.label3);
            this.panel1.Controls.Add(this.label2);
            this.panel1.Controls.Add(this.label1);
            this.panel1.Controls.Add(this.button1);
            this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.panel1.Location = new System.Drawing.Point(0, 0);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(264, 160);
            this.panel1.TabIndex = 0;
            this.panel1.Paint += new System.Windows.Forms.PaintEventHandler(this.panel1_Paint);
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(2, 134);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(69, 13);
            this.label4.TabIndex = 35;
            this.label4.Text = " Ilker Kulgu";
            this.label4.Click += new System.EventHandler(this.label4_Click);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(72, 8);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(184, 20);
            this.textBox1.TabIndex = 26;
            // 
            // textBox4
            // 
            this.textBox4.Enabled = false;
            this.textBox4.Location = new System.Drawing.Point(72, 104);
            this.textBox4.Name = "textBox4";
            this.textBox4.Size = new System.Drawing.Size(184, 20);
            this.textBox4.TabIndex = 30;
            this.textBox4.Text = "\"C:\\Program Files\\Microsoft Dynamics AX\\50\\Client\\Bin\\Ax32.exe\" -regconfig=\\\\ssbu" +
                "va01\\AX2009INST\\AX2009PRODobj1.axc";
            // 
            // textBox3
            // 
            this.textBox3.Location = new System.Drawing.Point(72, 40);
            this.textBox3.Name = "textBox3";
            this.textBox3.Size = new System.Drawing.Size(184, 20);
            this.textBox3.TabIndex = 28;
            // 
            // textBox2
            // 
            this.textBox2.Enabled = false;
            this.textBox2.Location = new System.Drawing.Point(72, 72);
            this.textBox2.Name = "textBox2";
            this.textBox2.Size = new System.Drawing.Size(184, 20);
            this.textBox2.TabIndex = 27;
            this.textBox2.Text = "BUVA_DOM";
            // 
            // label3
            // 
            this.label3.Location = new System.Drawing.Point(2, 40);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(64, 23);
            this.label3.TabIndex = 34;
            this.label3.Text = "Password";
            // 
            // label2
            // 
            this.label2.Location = new System.Drawing.Point(3, 72);
            this.label2.Name = "label2";
            this.label2.Size = new System.Drawing.Size(56, 23);
            this.label2.TabIndex = 33;
            this.label2.Text = "Domain";
            // 
            // label1
            // 
            this.label1.Location = new System.Drawing.Point(2, 8);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(64, 23);
            this.label1.TabIndex = 31;
            this.label1.Text = "User Name";
            this.label1.Click += new System.EventHandler(this.label1_Click);
            // 
            // button1
            // 
            this.button1.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.button1.Location = new System.Drawing.Point(98, 128);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(128, 24);
            this.button1.TabIndex = 32;
            this.button1.Text = "Start Axapta";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);
            // 
            // RunAsControl
            // 
            this.Controls.Add(this.panel1);
            this.Name = "RunAsControl";
            this.Size = new System.Drawing.Size(264, 160);
            this.Load += new System.EventHandler(this.RunAsControl_Load);
            this.panel1.ResumeLayout(false);
            this.panel1.PerformLayout();
            this.ResumeLayout(false);

		}
		#endregion



		private void button1_Click(object sender, System.EventArgs e)
		{
			try

			{
				System.Diagnostics.Process proc = RunAs.StartProcess(textBox1.Text,
					textBox2.Text, textBox3.Text, textBox4.Text);
				afterProcessStart(ref proc);
			}
            

            catch (System.ComponentModel.Win32Exception w32e)
            {
                //ProcessFailed(w32e.Message);
            }
		}

		private void afterProcessStart(ref System.Diagnostics.Process proc)
		{
			//ProcessStarted(proc.Id);
			try
			{
				proc.EnableRaisingEvents = true;
				proc.Exited += new EventHandler(m_process_Exited);
			}
			catch (Exception e)
			{
			//	ProcessAccessFailed(e.Message);
			}
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			OpenFileDialog m_openfile = new OpenFileDialog();
			if (m_openfile.ShowDialog(this) == DialogResult.OK)
			{
				textBox4.Text = m_openfile.FileName;
			}
			m_openfile.Dispose();
		}

		private void m_process_Exited(object sender, EventArgs e)
		{
			//ProcessEnded(((System.Diagnostics.Process)sender).Id);
		}

		private void RunAsControl_Load(object sender, System.EventArgs e)
		{
			textBox1.Text = System.Environment.UserName;
			textBox2.Text = System.Environment.UserDomainName;
			textBox3.PasswordChar = '\u25CF';
		}

        private void label4_Click(object sender, EventArgs e)
        {

        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void panel1_Paint(object sender, PaintEventArgs e)
        {

        }

        private void button1_Click_1(object sender, EventArgs e)
        {

        }
	}
}

Hope you guys can help me out..

Thanks in advance,

Ilker