Object code only and limited source availability
Some z/VM components,
facilities, and features are distributed in object code only (OCO)
form. No source program materials are available for the following:
- AVS
- Dump Viewing Facility
- DFSMS/VM
- Performance Toolkit
CP, CMS, DirMaint, and RACF® are distributed partially in OCO form, which means that some modules will not have source program materials available but others will.