Requested registry access is not allowed.

hi,

I am trying to SetValue for my registry ket at LocalMachine->Software->MyApplication but getting the following error:

Requested registry access is not allowed.

this is the code I am using:

RegistryKey regkeyLocalMachine = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\MyPOSMachine", true);
regkeyLocalMachine.SetValue(value_name, value_data, value_kind);

and the error is thrown on the first line (the OpenSubKey).

How can I fix it?

Thanks,

Jassim