Where can I get a program installer so I can program my Kensington Expert Mouse for my iMac?
To control the mouse on iMac, access the download URL posted below. The application is called TrackballWorks and it's available for some of the Mac OS X versions.
For more information, I recommend on checking the official website of the product.
Download URL: http://accoblobstorageus.blob.core.windows.net/software/38c5e777-b2ef-4434-8091-6290cb41fc16.dmg