Process owner

As far as I know you can't do that in .NET without using either WMI or the w32 API:

public const int TOKEN_QUERY = 0X00000008;

const int ERROR_NO_MORE_ITEMS = 259;

enum TOKEN_INFORMATION_CLASS                           
{
    TokenUser = 1,
    TokenGroups,
    TokenPrivileges,
    TokenOwner,
    TokenPrimaryGroup,
    TokenDefaultDacl,
    TokenSource,
    TokenType,
    TokenImpersonationLevel,
    TokenStatistics,
    TokenRestrictedSids,
    TokenSessionId
}

[DllImport("advapi32")]
static extern bool OpenProcessToken(
    HANDLE ProcessHandle, // handle to process
    int DesiredAccess, // desired access to process
    ref IntPtr TokenHandle // handle to open access token
);

[DllImport("kernel32")]
static extern HANDLE GetCurrentProcess();

[DllImport("advapi32", CharSet = CharSet.Auto)]
static extern bool GetTokenInformation(
    HANDLE hToken,
    TOKEN_INFORMATION_CLASS tokenInfoClass,
    IntPtr TokenInformation,
    int tokeInfoLength,
    ref int reqLength
);

[DllImport("kernel32")]
static extern bool CloseHandle(HANDLE handle);

[DllImport("advapi32", CharSet = CharSet.Auto)]
static extern bool ConvertSidToStringSid(
    IntPtr pSID,
    [In, Out, MarshalAs(UnmanagedType.LPTStr)] ref string pStringSid
);

[DllImport("advapi32", CharSet = CharSet.Auto)]
static extern bool ConvertStringSidToSid(
    [In, MarshalAs(UnmanagedType.LPTStr)] string pStringSid,
    ref IntPtr pSID
);

/// <summary>
/// Collect User Info
/// </summary>
/// <param name="pToken">Process Handle</param>
public static bool DumpUserInfo(HANDLE pToken, out IntPtr SID)
{
    int Access = TOKEN_QUERY;
    HANDLE procToken = IntPtr.Zero;
    bool ret = false;
    SID = IntPtr.Zero;
    try
    {
        if (OpenProcessToken(pToken, Access, ref procToken))
        {
            ret = ProcessTokenToSid(procToken, out SID);
            CloseHandle(procToken);
        }
        return ret;
    }
    catch (Exception err)
    {
        return false;
    }
}

private static bool ProcessTokenToSid(HANDLE token, out IntPtr SID)
{
    TOKEN_USER tokUser;
    const int bufLength = 256;            
    IntPtr tu = Marshal.AllocHGlobal(bufLength);
    bool ret = false;
    SID = IntPtr.Zero;
    try
    {
        int cb = bufLength;
        ret = GetTokenInformation(token, 
                TOKEN_INFORMATION_CLASS.TokenUser, tu, cb, ref cb)
        if (ret)
        {
            tokUser = (TOKEN_USER)Marshal.PtrToStructure(tu, typeof(TOKEN_USER));
            SID = tokUser.User.Sid;
        }
        return ret;
    }
    catch (Exception err)
    {
        return false;
    }
    finally
    {
        Marshal.FreeHGlobal(tu);
    }
}

public static string ExGetProcessInfoByPID
    (int PID, out string SID)//, out string OwnerSID)
{                                                                  
    IntPtr _SID = IntPtr.Zero;                                       
    SID = String.Empty;                                             
    try                                                             
    {                                                                
        Process process = Process.GetProcessById(PID);
        if (DumpUserInfo(process.Handle, out _SID))
        {                                                                    
            ConvertSidToStringSid(_SID, ref SID);
        }
        return process.ProcessName;                                          
    }                                                                           
    catch
    {                                                                           
        return "Unknown";
    }
}

Borrowed from:
http://www.codeproject.com/KB/cs/processownersid.aspx

Please look into System.Diagnostics.Process

Official Microsoft URL: System.Diagnotics.Process

For example here is a simple call using processId ( but you can use by processName as well just check out the Methods):

using System.Diagnostics;
 using System.Diagnostics.Process;
 public class Form1
 {
     private void
     {
         Process poo = default(Process);
         poo = Process.GetProcessById(3916, ".");
         Debug.Print(poo.ProcessName.ToString);
     }
 }

HTH's
sinnerFA

My bad.... It appears as though it is just used to pass to the Process.Start system.diagnostics.process.startinfo...

But I did find this: Use tokens to bypass security But nonetheless it does a call to unmanaged code

sknake> Thanks ;)