public static bool bit; 
          private void Form1_Load(object sender, EventArgs e) 
          { 
              bit = Directory.Exists(@"c:\Program Files (x86)"); 
              if (bit == true) 
              { 
                  listBox1.Items.Clear(); 
                  DirectoryInfo di = new DirectoryInfo("W7x64"); 
                  FileInfo[] rgFiles = di.GetFiles(); 
                  foreach (FileInfo fi in rgFiles) 
                  { 
                      listBox1.Items.Add(fi.Name); 
                  } 
              } 
   
              else 
              { 
                  listBox1.Items.Clear(); 
                  DirectoryInfo di = new DirectoryInfo("W7x86"); 
                  FileInfo[] rgFiles = di.GetFiles(); 
                  foreach (FileInfo fi in rgFiles) 
                  { 
                      listBox1.Items.Add(fi.Name); 
                  } 
              }  
          } 
   
          private void button1_Click(object sender, EventArgs e) 
          { 
              button1.Enabled = false; 
              try 
              { 
                   
                  if (bit == true) 
                  { 
                      progressBar1.Maximum = listBox1.Items.Count; 
                      for (int i = 0; i < listBox1.Items.Count; i++) 
                      { 
                          button1.Text = i.ToString() + " / " + listBox1.Items.Count.ToString(); 
                          try 
                          { 
                              Process.Start("W7x64\\" + listBox1.Items[i].ToString(), "/quiet /norestart").WaitForExit(); 
                          } 
                          catch (Exception) 
                          { 
                              Process.Start("W7x64\\" + listBox1.Items[i].ToString()).WaitForExit(); 
                          } 
                          finally 
                          { 
                              listBox1.SelectedIndex = i; 
                              progressBar1.Value = i; 
                          } 
                      } 
                  }else 
                      progressBar1.Maximum = listBox1.Items.Count; 
                      for (int i = 0; i < listBox1.Items.Count; i++) 
                      { 
                          button1.Text = i.ToString() + " / " + listBox1.Items.Count.ToString(); 
                          try 
                          { 
                              Process.Start("W7x86\\" + listBox1.Items[i].ToString(), "/quiet /norestart").WaitForExit();                            
                          } 
                          catch (Exception) 
                          { 
                              Process.Start("W7x86\\" + listBox1.Items[i].ToString()).WaitForExit(); 
                          } 
                          finally 
                          { 
                              listBox1.SelectedIndex = i; 
                              progressBar1.Value = i; 
                          } 
                      } 
                  } 
              catch (Exception) 
              { 
                  //MessageBox.Show(ex.Message,"Yükleme Hatası",MessageBoxButtons.OK,MessageBoxIcon.Error); 
              } 
              button1.Text = "Başla"; 
              MessageBox.Show("Güncelleştirmeler Başarıyla Yüklendi!"); 
              button1.Enabled = true; 
          }