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📄 form1.cs

📁 visual c# 网络编程技术与实践实例包括几个源码
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						key1.SetValue("NoDesktop",1);
						key1.Close();
						messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoLogOff、NoClose、NoDesktop被修改!请将它置为0";
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoLogOff",1);
							key2.SetValue("NoClose",1);
							key2.SetValue("NoDesktop",1);
							key2.Close();
							messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoLogOff、NoClose、NoDesktop被修改!请将它置为0";
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
                //控制码为as1011,控制服务器不能注销且隐藏硬盘盘符和桌面图标.
				if(ss=="as1011")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoLogOff",1);
						key1.SetValue("NoDrives",12);
						key1.SetValue("NoDesktop",1);
						key1.Close();
						messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoLogOff、NoDrives、NoDesktop被修改!请将它置为0";
					}
					catch{}
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoLogOff",1);
							key2.SetValue("NoDrives",12);
							key2.SetValue("NoDesktop",1);
							key2.Close();
							messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoLogOff、NoDrives、NoDesktop被修改!请将它置为0";
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//控制码为as0111,控制服务器无法关机且隐藏硬盘盘符和桌面图标.
				if(ss=="as0111")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoDrives",12);
						key1.SetValue("NoClose",1);
						key1.SetValue("NoDesktop",1);
						key1.Close();
						messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoClose、NoDrives、NoDesktop被修改!请将它置为0";
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoDrives",12);
							key2.SetValue("NoClose",1);
							key2.SetValue("NoDesktop",1);
							key2.Close();
							messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoClose、NoDrives、NoDesktop被修改!请将它置为0";
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
                }
				//控制码为as1111,控制服务器无法关机注销并隐藏桌面图标和硬盘盘符.
				if(ss=="as1111")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoLogOff",1);
						key1.SetValue("NoClose",1);
						key1.SetValue("NoDrives",12);
						key1.SetValue("NoDesktop",1);
						key1.Close();
						messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoLogOff、NoClose、NoDrives、NoDesktop被修改!请将它置为0";
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoLogOff",1);
							key2.SetValue("NoClose",1);
							key2.SetValue("NoDrives",12);
							key2.SetValue("NoDesktop",1);
							key2.Close();
							messagestring=messagestring+"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer键值NoLogOff、NoClose、NoDrives、NoDesktop被修改!请将它置为0";
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//恢复注册表的控制操作.			
				//控制码为rs1000,恢复注销功能.
				if(ss=="rs1000")
                {
                    try
                    {
                        key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
                        key1.SetValue("NoLogOff",0);
                        key1.Close();
                    }
                    catch
                    {
                    }
                    if(key1==null)
                    {
                        try
                        {
                            RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
                            key2.SetValue("NoLogOff",0);
                            key2.Close();
                        }
                        catch
                        {
                        }
                    }
                    string str="ctr";
                    byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
                    socket.Send(newbyte,newbyte.Length,0);
                }
				//控制码为rs0100,恢复关机功能.
				if(ss=="rs0100")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoClose",0);
						key1.Close();
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoClose",0);
							key2.Close();
                        }
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//控制码为rs0010,恢复显示硬盘盘符.
				if(ss=="rs0010")
				{					
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoDrives",0);
						key1.Close();
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoDrives",0);
							key2.Close();
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);			
				}
				//控制码为rs0001,恢复显示桌面图标.
				if(ss=="rs0001")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoDesktop",0);
						key1.Close();
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoDesktop",0);
							key2.Close();
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//控制码为rs1100,恢复注销与关机功能.
				if(ss=="rs1100")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoLogOff",0);
						key1.SetValue("NoClose",0);
						key1.Close();
                    }
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoLogOff",0);
							key2.SetValue("NoClose",0);
							key2.Close();
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
                }
				//控制码为rs1010,恢复注销功能且显示隐藏硬盘盘符.
				if(ss=="rs1010")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoLogOff",0);
						key1.SetValue("NoDrives",0);
						key1.Close();
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoLogOff",0);
							key2.SetValue("NoDrives",0);
							key2.Close();
						}
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);				
				}
				//控制码为rs1001,恢复注销功能且显示桌面图标.
				if(ss=="rs1001")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoLogOff",0);
						key1.SetValue("NoDesktop",0);
						key1.Close();
                    }
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoLogOff",0);
							key2.SetValue("NoDesktop",0);
							key2.Close();
                        }
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//控制码为rs0110,恢复关机功能且显示隐藏硬盘盘符.
				if(ss=="rs0110")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoClose",0);
						key1.SetValue("NoDrives",0);
						key1.Close();
					}
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoClose",0);
							key2.SetValue("NoDrives",0);
							key2.Close();
                        }
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//控制码为rs0101,恢复关机功能且显示桌面图标.
				if(ss=="rs0101")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoClose",0);
						key1.SetValue("NoDesktop",0);
						key1.Close();
                    }
					catch
                    {
                    }
					if(key1==null)
					{
						try
						{
							RegistryKey  key2=reg.CreateSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer");
							key2.SetValue("NoClose",0);
							key2.SetValue("NoDesktop",0);
							key2.Close();
                        }
						catch
                        {
                        }
					}
					string str="ctr";
					byte[]  newbyte=System.Text.Encoding.ASCII.GetBytes(str.ToCharArray());
					socket.Send(newbyte,newbyte.Length,0);
				}
				//控制码为rs0011,显示隐藏硬盘盘符和桌面图标.
				if(ss=="rs0011")
				{
					try
					{
						key1=reg.OpenSubKey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",true);
						key1.SetValue("NoDrives",0);
						key1.SetValue("NoDesktop",0);
						key1.Close();
                    }
					catch
                    {
                    }
					if(key1==null)
					{

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