static extern bool WritePrivateProfileSection(string lpAppName,

[DllImport("KERNEL32.DLL", CharSet=CharSet::Auto, EntryPoint="WritePrivateProfileSection")]

static Boolean WritePrivateProfileSection(String^ lpAppName, String^ lpString, String^ lpFileName);

Private Declare Auto Function WritePrivateProfileSection(ByVal lpAppName As String, _

To work with your own ini files, use WritePrivateProfileSection instead, which can edit any ini file.