This is WMI library for IronRuby

Use Like below
 require 'ironruby-wmi'

 processes = WMI::Win32_Process.get_instances
 processes.each do |proces|
   puts proess.caption
 end

Or Asynchronous version
 require 'ironruby-wmi'

 WMI::Win32_Process.get_instances_async do |process|
   puts process.caption
 end

Or
 require 'ironruby-wmi'

 WMI::Win32_Process.get_instances_async do |process|
   puts self.caption
 end

Or 
 require 'ironruby-wmi'

 WMI::Win32_Process.get_instances_async do |process|
   puts caption
 end