Using bootcamp 5.1, Windows 7 home is installed but missed installing the drivers disk. How to install the Mac drivers for windows after the fact.

While using Bootcamp 5.1, and OS X 10.8.2, I partitioned my Mac disk with 80 Gigs for Windows 7 home and the install went great, but I must have missed the time when I was to install the Mac drivers disk to install the drivers for Windows,(when in Windows I don't have a mouse or optical drive.) Is there a way to install the drivers after Windows is installed, or do I have to go through the whole process all over again?