Getting error while requiring win32/sound

Ruby
1

Hi,
I keep getting this error

C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
require': no such file to load -- win32/sound (LoadError) from C:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’

Any way to fix it?