binary distributions for Windows from ruby-lang.org?
The binary packages for Windows found on ruby-lang.org lack several key components, such as OpenSSL, Zlib and Readline, which results in a broken experience for users trying install these binary distributions out-of-the-box. To compound the issue, other extensions are built-in, but lack essential bindings such as Tk and gdbm. Locating and installing the correct versions of these missing components can be tricky; RubyInstaller seeks to alleviate these difficulties and make the installation process dead-simple by providing everything you need to get started in one straightforward installation package.