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copied!<p>This code will create a local account with the password never expires option set:</p> <pre><code> using System.DirectoryServices; DirectoryEntry hostMachineDirectory = new DirectoryEntry("WinNT://localhost"); DirectoryEntries entries = hostMachineDirectory.Children; bool userExists = false; foreach (DirectoryEntry each in entries) { userExists = each.Name.Equals("NewUser", StringComparison.CurrentCultureIgnoreCase); if (systemtestUserExists) break; } if (false == userExists) { DirectoryEntry obUser = entries.Add("NewUser", "User"); obUser.Properties["FullName"].Add("Local user"); obUser.Invoke("SetPassword", "abcdefg12345@"); obUser.Invoke("Put", new object[] {"UserFlags", 0x10000}); obUser.CommitChanges(); } </code></pre> <p>The 0x10000 flag means PasswordNeverExpires.</p> <p>I spent a long time figuring out how to create a local user account with the password set not to expire. It seems that when you try to use:</p> <pre><code>int val = (int)newUser.Properties["userAccountControl"].Value; newUser.Properties["userAccountControl"].Value = val | 0x10000 </code></pre> <p>permissions from active directory come into play. If you have active directory permissions everything works fine. If you don't then getting the userAccountControl property will always result in a null value. Trying to set userAccountControl will result in an exception "The directory property cannot be found in the cache".</p> <p>However after much hunting around I found another property "UserFlags" that needs to be set using Invoke. You can use this to set the flag on a local account. I've tried this code and it worked on windows server 2008.</p> <p>Hope this helps</p>

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