GetComputerName example code.

http://stackoverflow.com/questions/1025086/how-do-i-call-windows-dll-functions-from-ruby
http://www.rubytips.org/2008/05/13/accessing-windows-api-from-ruby-using-win32api-library/
GetUserName Add
get_version_ex.rb Add
Os Add
structure/osversioninfoex.rb Add
stasy