This is the new installer pack for ReWire and Rex, developed by Propellerhead specifically to meet the new requirements of Windows Vista. This new installation is needed if you want to use Reason or other Propellerhead software in compliance with the ReWire and Rex specifications. 15:40
This update installs the ReWire and Rex shared libraries in the way Windows Vista expects them to be installed. Please note the following:

* Only run this installer if you are running Windows Vista. This installer is not for Windows XP or any other version of Windows.
* Run this installer last, meaning after you have installed Reason and all other ReWire applications.
* If you install or reinstall a ReWire application on your system, you will need to run this installer again.


It is highly recommended to always use the most recent driver version available.
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Try to set a system restore point before installing a device driver. This will help if you installed a wrong driver. Problems can arise when your hardware device is too old or not supported any longer.