Writes data derived from the CObject Class to a specific registry value.
The lpszSubSection parameter is not an absolute path for a registry entry. It is a relative path that is appended to the end of the default registry key for your application. To get or set the default registry key, use the methods CWinAppEx::GetRegistryBase and CWinAppEx::SetRegistryBase, respectively.
If the value specified by lpszEntry does not exist under the registry key specified by lpszSubSection, this method will create that value.