@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: Adds members to a local group on the current or a remote computer !!!!C# Signature: [DllImport("NetApi32.dll", CharSet=CharSet.Auto, SetLastError=true)] private static extern Int32 NetLocalGroupAddMembers( string servername, //server name string groupname, //group name UInt32 level, //info level ref LOCALGROUP_MEMBERS_INFO_3 buf, //Group info structure UInt32 totalentries //number of entries ); !!!!VB Signature: Declare Function NetLocalGroupAddMembers Lib "netapi32.dll" (TODO) As TODO !!!!User-Defined Types: None. !!!!Alternative Managed API: Here's some sample code that can do this using System.DirectoryServices private void AddDomainUserToLocalGroup( string userName, string groupName, string domainName) { try { string computerName = SystemInformation.ComputerName; string localDirEntryString = "WinNT://" + computerName + ",computer"; DirectoryEntry localDE = new DirectoryEntry(localDirEntryString); string domainDirEntryString = String.Format("WinNT://{0}", domainName); DirectoryEntry domainDE = new DirectoryEntry(domainDirEntryString); DirectoryEntry user = domainDE.Children.Find(userName, "user"); DirectoryEntry group = localDE.Children.Find(groupName, "group"); string invokeArg = user.Path.ToString(); group.Invoke("Add", (object)invokeArg); } catch (DirectoryServicesCOMException e) { //trace the error } catch (TargetInvocationException tie) { //trace the error } } !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: using System; using System.Text; using System.Runtime.InteropServices; namespace ConsoleApplication3 { class Program { [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)] static extern bool LookupAccountSid( string SystemName, [MarshalAs(UnmanagedType.LPArray)] byte[] Sid, StringBuilder Name, ref uint NameCount, StringBuilder ReferencedDomainName, ref uint ReferencedDomainNameCount, out SID_NAME_USE SIDUse); [DllImport("netapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)] extern static int NetLocalGroupAddMembers(string ServerName, string LocalGroupName, uint Level, ref LOCALGROUP_MEMBERS_INFO_3 MemberInfo, uint TotalEntries); //Error codes associated with 'NetLocalGroupAddMembers' //The local group specified by the groupname parameter does not exist. private const int NERR_GroupNotFound = 2220; //The user does not have access to the requested information. private const int ERROR_ACCESS_DENIED = 5; // One or more of the members specified do not exist. Therefore, no new members were added. private const int ERROR_NO_SUCH_MEMBER = 1387; // One or more of the members specified were already members of the local group. No new members were added. private const int ERROR_MEMBER_IN_ALIAS = 1378; // One or more of the members cannot be added because their account type is invalid. No new members were added. private const int ERROR_INVALID_MEMBER = 1388; struct LOCALGROUP_MEMBERS_INFO_3 { [MarshalAs(UnmanagedType.LPWStr)] public string Domain; } [StructLayout(LayoutKind.Sequential)] private struct LOCALGROUP_MEMBERS_INFO_0 { [MarshalAs(UnmanagedType.SysInt)] public IntPtr pSID; } enum SID_NAME_USE { SidTypeUser = 1, SidTypeGroup, SidTypeDomain, SidTypeAlias, SidTypeWellKnownGroup, SidTypeDeletedAccount, SidTypeInvalid, SidTypeUnknown, SidTypeComputer } private static class Win32ErrorCodes { internal const int NERR_Success = 0x000; // Member alread in group. internal const int MemberInAlias = 0x562; } static void Main(string[] args) { MakeUserAdmin(@"GEDEV\Engineer_1"); } static bool MakeUserAdmin(string UserName) { bool bOk = false; StringBuilder sbName = new StringBuilder(); uint uiName = (uint)sbName.Capacity; StringBuilder sbReferencedDomainName = new StringBuilder(); uint uiReferencedDomainNameCount = (uint)sbReferencedDomainName.Capacity; SID_NAME_USE eUse; // Sid for BUILTIN\Administrators byte[] baSid = new byte[] { 1, 2, 0, 0, 0, 0, 0, 5, 32, 0, 0, 0, 32, 2 }; if (!LookupAccountSid(null, baSid, sbName, ref uiName, sbReferencedDomainName, ref uiReferencedDomainNameCount, out eUse)) return bOk; // prepare user name LOCALGROUP_MEMBERS_INFO_3 info; info.Domain = UserName; int iRetVal = 0; // add the user to the administrators group if ((iRetVal = NetLocalGroupAddMembers(null, sbName.ToString(), 3, ref info, 1)) != 0) return bOk; bOk = true; return bOk; } public static void AddMemberToLocalGroup(string groupName, SecurityIdentifier sid) { var sidBytes = new byte[sid.BinaryLength]; sid.GetBinaryForm(sidBytes, 0); var info3 = new LOCALGROUP_MEMBERS_INFO_0 { pSID = Marshal.AllocHGlobal(sidBytes.Length) }; try { Marshal.Copy(sidBytes, 0, info3.pSID, sidBytes.Length); var result = NetLocalGroupAddMembers(null, groupName, 0, ref info3, 1); if (result == Win32ErrorCodes.NERR_Success || result == Win32ErrorCodes.MemberInAlias) { return; } throw new Win32Exception(result); } finally { Marshal.FreeHGlobal(info3.pSID); } } } } Documentation: NetLocalGroupAddMembers@msdn on MSDN
Edit netapi32.netlocal...
You do not have permission to change this page. If you feel this is in error, please send feedback with the contact link on the main page.