Back Up Registry files as .txt file

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C#

Help please
I try to find code to take backup without using regedit.exe i always found this code

public void ExportKey(string RegKey, string SavePath)
       {
           string path = "\"" + SavePath + "\"";

           string key = "\"" + RegKey + "\"";

           System.Diagnostics.Process proc = new System.Diagnostics.Process();
           try
           {
               proc.StartInfo.FileName = "regedit.exe";
               proc.StartInfo.UseShellExecute = false;
               proc =System.Diagnostics.Process.Start("regedit.exe", "/e " + path + " " + key + "");

               if (proc != null) proc.WaitForExit();
           }
           finally
           {
               if (proc != null) proc.Dispose();
           }

           MessageBox.Show("The export process is complete.\n\nCheck your desktop or the folder that you have specified as your save location.");
       }

I found code in code project Import/Export registry sections as XML[^]
but doesn't work with me
thanks everybody