微軟MSDN Library上AlwaysUnloadDLL好像是機碼
http://msdn2.microsoft.com/en-us/li...loading_the_DLL

Windows 2000以後似乎不支援AlwaysUnloadDLL
Important This registry key is no longer supported in Microsoft Windows 2000 or later.
http://support.microsoft.com/kb/196480/en-us