To access the tools in the Rename Field Toolbox:
1. Run the install.bat file to register the dll.
2. Launch ArcGIS Desktop and browse to the Rename Field Toolbox in the Catalog Window

If you have installed 64 Bit Background Geoprocessing at service pack 1 run install64BackgroundGP.bat in addition to install.bat to support running these tools in the background.

To ensure the help is availble for the tools always keep the two xml files in the same directory as the dll. Once the dll has been registered the Toolbox will work from any location and the tools can be copied to your own Toolbox. 

To uninstall run the uninstall.bat file.