[ruby-core:35397] [Ruby 1.9 - Bug #4405] WIN32OLE & Threads incompatible
简单的说, win32ole是线程不安全的, 如果在thread里面去调用它, 就会报错
Issue #4405 has been updated by Thomas Enebo.英文部分来自: http://fossplanet.com/f14/%5Bruby-core-35397%5D-%5Bruby-1-9-bug-4405%5D-win32ole