How do I get the currently-logged username from a Windows service in NET

Question

I have a Windows service which need the currently logged username  I tried System Environment UserName  Windows identity and Windows form authentication  but all are returning  System  as the user as my service is running in system privileged  Is there a way to get the currently logged in username without changing my service account type

User · Answer

You can also try  System Environment GetEnvironmentVariable  UserName

User · Answer

If you are in a network of users  then the username will be different   Environment UserName   Will Display format    Username   rather than  System Security Principal WindowsIdentity GetCurrent   Name   Will Display format    NetworkName Username   Choose the format you want

User · Answer

This is a WMI query to get the user name   ManagementObjectSearcher searcher   new ManagementObjectSearcher  SELECT UserName FROM Win32 ComputerSystem    ManagementObjectCollection collection   searcher Get    string username    string collection Cast lt ManagementBaseObject gt    First    UserName      You will need to add System Management under References manually

User · Answer

Just in case someone is looking for user Display Name as opposed to User Name  like me   Here s the treat       System DirectoryServices AccountManagement UserPrincipal Current DisplayName    Add Reference to System DirectoryServices AccountManagement in your project

User · Answer

Modified code of Tapas s answer   Dim searcher As New ManagementObjectSearcher  SELECT UserName FROM Win32 ComputerSystem   Dim collection As ManagementObjectCollection   searcher  Get    Dim username As String For Each oReturn As ManagementObject In collection     username   oReturn  UserName   Next

User · Answer

ManagementObjectSearcher  SELECT UserName FROM Win32 ComputerSystem   solution worked fine for me  BUT it does not work if the service is started over a Remote Desktop Connection  To work around this  we can ask for the username of the owner of an interactive process that always is running on a PC  explorer exe  This way  we always get the currently Windows logged-in username from our Windows service   foreach  System Management ManagementObject Process in Processes Get          if  Process  ExecutablePath      null  amp  amp           System IO Path GetFileName Process  ExecutablePath   ToString    ToLower       explorer exe                  string   OwnerInfo   new string 2           Process InvokeMethod  GetOwner    object   OwnerInfo            Console WriteLine string Format  Windows Logged-in Interactive UserName  0    OwnerInfo 0              break

User · Answer

Try WindowsIdentity GetCurrent    You need to add reference to System Security Principal

User · Answer

Completing the answer from  xanblax  private static string getUserName                 SelectQuery query   new SelectQuery   Select   from Win32 Process            using  ManagementObjectSearcher searcher   new ManagementObjectSearcher query                         foreach  System Management ManagementObject Process in searcher Get                                  if  Process  ExecutablePath      null  amp  amp                      string Equals Path GetFileName Process  ExecutablePath   ToString      explorer exe   StringComparison OrdinalIgnoreCase                                         string   OwnerInfo   new string 2                       Process InvokeMethod  GetOwner    object   OwnerInfo                        return OwnerInfo 0                                                     return

[c#] How do I get the currently-logged username from a Windows service in .NET?

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