Remove permissions from the Windows folder

Question

I have a widows folder on a remote server from which I want to remove permissions for a specific user. I tried many methods and nothing works.

I am not getting errors with the following code, but the resolution remains intact. Am I not using the correct objects or missing a step with these objects? Any help would be greatly appreciated.

DirName is passed as a share, e.g.. \ MyServer \ my_folder

private void removePermissions(string dirName, string username) { string user = System.Environment.UserDomainName + "\\" + username; DirectoryInfo dirinfo = new DirectoryInfo(dirName); DirectorySecurity dsec = dirinfo.GetAccessControl(AccessControlSections.All); AuthorizationRuleCollection rules = dsec.GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount)); foreach (AccessRule rule in rules) { if (rule.IdentityReference.Value == user) { bool value; dsec.PurgeAccessRules(rule.IdentityReference); dsec.ModifyAccessRule(AccessControlModification.RemoveAll, rule, out value); MessageBox.Show("Removed permission from " + dirName + " for " + user); } } } 

Answer 1

Once you have created a new ACL, you need to apply it to the folder.

Add

 dirinfo.SetAccessControl(dsec); 

after the cycle.