On-line EPC (Electronic Parts Catalog)
Reference: W220 Wiki Section WIS 58 Tools and Accessories
With thanks to BenzWorld Senior Member, Bullethead_D:
Downloadable WIS (07/2013) and EPC (01/2013)
Be Warned. You need to have considerable technical ability to make use of the following.
Once installed the STAR WIS (Workshop Information System) and EPC (Electronic Parts Catalog) software runs in a virtual WinXP environment via VMware Player which allows it to be used on just about any PC. It needs a data connection to access the on-line versions of the EPC and WIS.
BenzWorld Member, BestBalbes, prepared a VM with WIS (07/2013) and EPC (01/2013). The rar-archive file is 25Gb,and when expanded the Virtual Machine file is 40Gb.
Brief instructions. Use VMWare VM Player. OS loads desktop with auto-login.
BenzWorld Member, Ex-Fed, has produced a full How To Install Document.