EPIC® XLi   
Web-based EPIC^® technology, delivered using a standard Internet Browser. The look and feel mimics the classic PC Version, EPIC^® XL Release 5.0, to reduce user training time.... 

EPIC® XL Release 5.0
PC-based EPIC^® technology, delivered on CD for Microsoft Windows. Powerful software delivering extended Product Information to the desktop including Parts Catalogs, Service Bulletins, Parts Pricing Books, Service Manuals, and more....

EPIC® Internet Data Server
Selected EPIC^® XL Release 5.0 data updates using the Internet. Urgent releases, small fixes, and other high priority updates....