C#

private void rename_Click(object sender, EventArgs e)
{
    DialogResult result = MessageBox.Show("Are you sure ?", "Warning", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
    if (result == DialogResult.Yes)
    {
        Thread tr = new Thread(new ThreadStart(chnTarget));
        tr.Start();
    }
}

private void chnTarget()
{
    this.Invoke(new ThreadStart(ChangeName));
}

bool cancel = false;
private void ChangeName()
{
    Random rand = new Random(DateTime.Now.Second);
    string folder_path = SelectedPathText.Text;
    long progress_value = 0;
    string new_filename = "";
    cancel = false;

    progressBar1.Minimum = 0;
    progressBar1.Value = 0;

    try
    {
        string[] FullPathFileNames = System.IO.Directory.GetFiles(folder_path);
        progressBar1.Maximum = FullPathFileNames.Length;

        if (FullPathFileNames.Length == 0) throw new Exception("No File Found \n");

        foreach (string filename in FullPathFileNames)
        {
            if (cancel)
            {
                labelResult.Text = "Canceled";
                break;
            }

            progress_value++;

            try
            {
                if (!radioRandom.Checked)
                {
                    new_filename = folder_path + "\\" + textBoxTemplate.Text + progress_value + Path.GetExtension(filename);
                }
                else
                {
                    if (checkBoxOmitExtension.Checked)
                        new_filename = folder_path + "\\" + rand.Next();
                    else
                        new_filename = folder_path + "\\" + rand.Next() + Path.GetExtension(filename);
                }

                File.Move(filename, new_filename);
                Application.DoEvents();
            }
            catch { }

            progressBar1.Value = (int)progress_value;
            progressBar1.Update();
        }

        labelResult.Text = "Complete";
        cancel = false;
    }
    catch (Exception ex)
    {
        labelResult.Text = ex.Message;
    }
}

public List<Product> InstalledApplications(string dns)
{
    List<Product> products = new List<Product>();
    try
    {
        ManagementScope scope = new ManagementScope(@"\\" + dns + @"\root\CIMV2", conn);
        ManagementObjectSearcher mos = new ManagementObjectSearcher(scope, new ObjectQuery("SELECT Name, Vendor, InstallLocation, InstallDate2, Version FROM Win32_Product"));

        foreach (ManagementObject mo in mos.Get())
        {
            if (mo["Name"] != null)
            {
                Product product = new Product();
                product.Name = mo["Name"].ToString().Trim();

                if (mo["Vendor"] != null)
                    product.Vendor = mo["Vendor"].ToString().Trim();

                if (mo["InstallLocation"] != null)
                    product.InstallLocation = mo["InstallLocation"].ToString().Trim();

                if (mo["InstallDate2"] != null)
                    product.InstallDate2 = ParseCIMDateTime(mo["InstallDate2"].ToString());

                if (mo["Version"] != null)
                    product.Version = mo["Version"].ToString().Trim();

                products.Add(product);
            }
        }
    }
    catch (ThreadAbortException) {  }
    catch (Exception ex) {
        EventLog.WriteEntry("ADEM Application", ex.Message, EventLogEntryType.Error);

        Product product = new Product();
        product.Name    = "Error";
        product.Vendor  = ex.Source;
        product.InstallLocation = ex.ToString();
        products.Add(product);
    }

    return products;
}