broken RegCreateKeyExA definition in registry.rb
definition of advapi32.dll function: RegCreateKeyExA is broken (missing one argument). See: http://msdn.microsoft.com/en-us/library/ms724844%28v=vs.85%29.aspx
This bug was introduced in 1.9.2.
It is impossible (since 1.9.2) to create registry keys with Win32::Registry.create (raises ArgumentError) without this fix.