How do you get the UserName of the owner of a process?

Question

I'm trying to get a list of processes currently owned by the current user (Environment.UserName). Unfortunately, the Process class doesn't have any way of getting the UserName of the user owning a process.

How do you get the UserName of the user which is the owner of a process using the Process class so I can compare it to Environment.UserName?

If your solution requires a pinvoke, please provide a code example.

Answer 1

Thanks, your answers put me on the proper path. For those who needs a code sample:

public class App
{
    public static void Main(string[] Args)
    {
        Management.ManagementObjectSearcher Processes = new Management.ManagementObjectSearcher("SELECT * FROM Win32_Process");

        foreach (Management.ManagementObject Process in Processes.Get()) {
            if (Process["ExecutablePath"] != null) {
                string ExecutablePath = Process["ExecutablePath"].ToString();

                string[] OwnerInfo = new string[2];
                Process.InvokeMethod("GetOwner", (object[]) OwnerInfo);

                Console.WriteLine(string.Format("{0}: {1}", IO.Path.GetFileName(ExecutablePath), OwnerInfo[0]));
            }
        }

        Console.ReadLine();
    }
}

Answer 2

The CodeProject article How To Get Process Owner ID and Current User SID by Warlib describes how to do this using both WMI and using the Win32 API via PInvoke.

The WMI code is much simpler but is slower to execute. Your question doesn't indicate which would be more appropriate for your scenario.