http://bugs.winehq.org/show_bug.cgi?id=25535
--- Comment #5 from André H. nerv@dawncrow.de 2010-12-22 12:52:36 CST --- (In reply to comment #2)
This installer supports both 32bit and 64bit installs, see "Supported Architectures:" under system requirements.
True, it contains both.
btw the error is a: HRESULT_FROM_WIN32(ERROR_DS_VERSION_CHECK_FAILURE)