how to get install location of from registry in c#?

Question

Hi all 

i want to fetch install location of all products in my app so for that purpose i am using registry class and using below string value for it

"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\UnInstall"

and

"SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\UnInstall" for 64 bit version.

but it is not giving me details of all products for example

notepad ++ available in above path in registry editor but using my code it is not displaying the values for notepad.

 

below is my code

StreamWriter sw = new StreamWriter(@"D:\localmachineProducts64.txt", true);

using (RegistryKey rk = Registry.LocalMachine.OpenSubKey(uninstallKey))

{

foreach (string skName in rk.GetSubKeyNames())

{

using (RegistryKey sk = rk.OpenSubKey(skName))

{

try

{

sw.Write(sk.GetValue("DisplayName") + "\t" + sk.GetValue("InstallLocation"));

sw.Write(sw.NewLine);

count++;

}

catch (Exception ex)

{

MessageBox.Show(ex.Message);

}

}

}

sw.Write("Total count :=" + count);

}

sw.Close();