---
title: Distributed Objects Support
framework: foundation
role: collectionGroup
role_heading: API Collection
path: foundation/distributed-objects-support
---

# Distributed Objects Support

Enable communication among objects in different processes, both locally and on remote systems.

## Topics

### Legacy

- [NSMachPortDelegate](foundation/nsmachportdelegate.md)
- [NSMachPort](foundation/nsmachport.md)
- [MessagePort](foundation/messageport.md)
- [PortDelegate](foundation/portdelegate.md)
- [PortMessage](foundation/portmessage.md)
- [NSProtocolChecker](foundation/nsprotocolchecker.md)

## See Also

### Legacy

- [Objective-C Garbage Collection](foundation/objective-c-garbage-collection.md)