Manage pedigrees of group-living organisms and export the group history data to PMx. This package was developed by Belén Jiménez-Mena, Kristine Schad Eebes, and Bob Lacy and is available at its official Github site.
This program calculates inbreeding coefficients, partial inbreeding coefficients with respect to each founder, and proportion of the genome contributed by each founder. The program is run as a Windows application, with a simple user interface to prompt for input and output file names. This download includes the source code (in C#; feel free to use and modify it for your own uses), sample input files, the executable, and a document with further description and instructions.
A paper that uses the partial inbreeding coefficients to analyze the distribution of genetic load among founders is:
Lacy, R.C, G. Alaks, and A. Walsh. 1996. Hierarchical analysis of inbreeding depression in Peromyscus polionotus. Evolution 50:2187-2200.