There's another option
ftp://ftp.steinberg.net/Download/Hardware/ASIO/

32bit Windows
copy asiodxfd.dll file to C:\Windows\System32
goto C:\Windows\System32 click on cmd.exe
at prompt right click paste RegSvr32 asiodxfd.dll
Enter

64bit Windows
copy asiodxfd.dll file to C:\Windows\SysWOW64
goto C:\Windows\SysWOW64 right click on cmd.exe run as admin
at prompt right click paste RegSvr32 asiodxfd.dll
Enter

Here's a zip with both 32 & 64 ASIO driver, if you run the asiosetup (right click "Run as Admin..) it should install it automatically instead of the manual way above.
DropBox Asio32-64bit.zip

64 to C:\Program Files\Steinberg\Asio
32 to C:\Program Files (x86)\Steinberg\Asio

In a 64bit app choose
64bit > Generic Low Latency Driver

In a 32bit app choose
32bit > ASIO DirectX Full Duplex

Attached Files (Click to download or enlarge) (Only available when you are logged in)
ASIO_DirectX.jpg (144.17 KB, 53 downloads)