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POHow to programmatically create Windows user accounts on Windows 7 or Windows Server 2008?
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copied!<p>I've been trying to create new local user accounts on windows 7 machine. I used the System.DirectoryServices.DirectoryEntry class (as in <a href="http://support.microsoft.com/default.aspx?scid=kb;en-us;306273">here</a>) but it doesn't seem to work. </p> <p>Here's the code in the article:</p> <pre><code>static void Main(string[] args) { try { DirectoryEntry AD = new DirectoryEntry("WinNT://" + Environment.MachineName + ",computer"); DirectoryEntry NewUser = AD.Children.Add("TestUser1", "user"); NewUser.Invoke("SetPassword", new object[] {"#12345Abc"}); NewUser.Invoke("Put", new object[] {"Description", "Test User from .NET"}); NewUser.CommitChanges(); DirectoryEntry grp; grp = AD.Children.Find("Guests", "group"); if (grp != null) {grp.Invoke("Add", new object[] {NewUser.Path.ToString()});} Console.WriteLine("Account Created Successfully"); Console.ReadLine(); } catch (Exception ex) { Console.WriteLine(ex.Message); Console.ReadLine(); } } </code></pre> <p>When executing this line </p> <p><code>DirectoryEntry NewUser = AD.Children.Add("TestUser1", "user");</code> </p> <p>I get a </p> <p><code>System.Runtime.InteropServices.COMException</code> with "<code>{"Unknown error (0x80005000)"}</code>" </p> <p>as the exception message, and <code>-2147463168</code> as the error code.</p> <p>I assume this is probably because the article targets Windows XP and below machines, and I'm targeting windows 7 and Windows server 2008. </p> <p>Any help appreciated! <br /> <br /> <strong>Update:</strong> <br /> <em>For some mysterious reason, i'm no longer seeing that <code>System.Runtime.InteropServices.COMException</code>, however, when committing the changes here <code>newuser.CommitChanges()</code>, I get a "<code>UnAuthorizedAccessException</code>". I tried running the app as administrator, but still not working.</em></p> <p><strong>Update 2:</strong> <br /> OK, after changing to the UserPrincipal class, i got the follwoing code to work:<br /></p> <pre><code>public UserPrincipal CreateNewUser(string sUserName, string sPassword) { // first check that the user doesn't exist if (GetUser(sUserName) == null) { PrincipalContext oPrincipalContext = GetPrincipalContext(); UserPrincipal oUserPrincipal = new UserPrincipal(oPrincipalContext); oUserPrincipal.Name = sUserName; oUserPrincipal.SetPassword(sPassword); //User Log on Name //oUserPrincipal.UserPrincipalName = sUserName; oUserPrincipal.Save(); return oUserPrincipal; } // if it already exists, return the old user return GetUser(sUserName); } } </code></pre> <p><br /> This code runs well when I run it as a console app -of course run as administrator- but when i deployed it as a windows service, with the security account set as "LocalSystem", i get an <code>InvlaidOperationException</code> saying "The underlying store does not support this property" <br /></p> <p>Thoughts?</p>

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