My look at what’s coming, Buckle Up, Here Comes Windows 8, Excel 2013 and GP 2013, is up at Mad Mark the GP Road Warrior.
Buckle Up, Here Comes Windows 8, Excel 2013 and GP 2013
Excel & OfficeInstall, Upgrade & AdminGP 2013
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.