c# - reading value from registry and storing it in a bin file in a folder

Question

I am writing a C# code. As shown in the image, I need to retrieve the value of a key called LicenseKey (right side of the image) from the registry path HKEY_LOCAL_MACHINE/Software/Avtec, Inc/LicenseKey and store the value in a bin file called pml.bin

Can anyone help me with the code? Thanks in advance.

Answer 1

Add reference to Microsoft.Win32 API and add the below code.

        RegistryKey key = Registry.LocalMachine;
        RegistryKey dataKey = key.OpenSubKey(@"SoftwareAvtec.IncLicenseKey");
        string licenceKey = dataKey.GetValue("required field name").ToString();

        using (BinaryWriter b = new BinaryWriter(File.Open("file.bin", FileMode.Create)))
        {
            b.Write(licenceKey);
            b.Close();
        }