If your Mac is newer (2010+), Bootcamp 3.0 will have network, graphics, or USB 3.0 drivers.
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Boot Camp 3.0 is the essential driver suite required to run natively on older Intel-based Mac computers. Released alongside Mac OS X 10.6 Snow Leopard , this version provides the necessary hardware support for Apple's trackpads, keyboards, and wireless components within the Windows environment. System Requirements for Boot Camp 3.0
