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Maximum number of access control entries in the access control listArticle ID: 166348 - View products that this article applies to. This article was previously published under Q166348 Symptoms
When you add users or groups to the security permissions of an object
share, file, or directory, you may receive the following error message:
You have exceeded the operating system's limit on the number of
users and groups that can be in a security information structure.
Remove some users or groups and try the operation again.
Additonally, when you use Cacls.exe to perform this function, you may receive the following error message:
The parameter is incorrect.
CauseThis issue occurs when you reach the maximum size of the access control list (ACL). The size of an ACL varies with the number and size of its access control entries (ACEs). The maximum size of an ACL is 64 kilobytes (KB), or approximately 1,820 ACEs. However, for performance reasons, the maximum size is not practical. More informationFor more information about security descriptors and ACLs, go to the following Microsoft website: How Security Descriptors and Access Control Lists Work
(http://technet.microsoft.com/en-us/library/cc781716.aspx)
PropertiesArticle ID: 166348 - Last Review: April 18, 2013 - Revision: 6.0 Applies to
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