Jan Harrigan was kind enough to send me a free copy of her 7 Options for Replacing FRx. If you’re looking to replace FRx this is a fantastic resource. It’s scary how thorough this is.
7 Options for Replacing FRx | FRxBuzz
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.