DS CWA 16374-18:2012 Extensions For Financial Services (Xfs) Interface Specification Release 3.20 - Part 18: Item Processing Module Device Class Interface Programmer's Reference Explains the XFS service class for Item Processing Modules (IPM). Also includes definitions of the service-specific commands that can be issued, using the WFSAsyncExecute, WFSExecute, WFSGetInfo and W