Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am looking at using icacls.exe. However, before proceeding, I wanted clarification on the difference between these two ACL's:

            (OI) - object inherit
            (CI) - container inherit
share|improve this question
up vote 10 down vote accepted

These flags control the inheritance of ACLs. There are other flags, too-- IO and NP. You can see more about them in the article I link below.

In short, access control entries (ACEs) flagged only with "Object Inheritance" apply that ACE to files in a folder, but not subfolders within that folder. ACEs flagged only with "Container Inheritance" apply that ACE to subfolders of the folder but not files.

There are several more permutations possible, too. You can see a more verbose human-readable description here:

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.