C#

System.Diagnostics.Process.Start("C:\\Program Files\\Adobe\\Acrobat 7.0\\Reader\\Acrord32.exe",<br />
                "/t \"mytest.pdf\" \"MyWindowsPrinterName\"");

using System;<br />
using System.Runtime.InteropServices;<br />
<br />
namespace UserInfo<br />
{<br />
  public class Program<br />
  {<br />
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]<br />
    public struct USER_INFO<br />
    {<br />
      [MarshalAs(UnmanagedType.LPWStr)]<br />
      public String username;<br />
      [MarshalAs(UnmanagedType.LPWStr)]<br />
      public String password;<br />
      [MarshalAs(UnmanagedType.LPWStr)]<br />
      public String comment;<br />
      [MarshalAs(UnmanagedType.LPWStr)]<br />
      public String fullname;<br />
    }<br />
<br />
    [DllImport("Netapi32.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]<br />
    private extern static Int32 NetUserGetInfo(<br />
      [MarshalAs(UnmanagedType.LPWStr)] String ServerName,<br />
      [MarshalAs(UnmanagedType.LPWStr)] String UserName,<br />
      Int32 level,<br />
      out IntPtr BufPtr);<br />
<br />
    [DllImport("Netapi32.dll", SetLastError = true)]<br />
    static extern Int32 NetApiBufferFree(IntPtr Buffer);<br />
<br />
    public static String GetFullname()<br />
    {<br />
      String retVal = String.Empty;<br />
<br />
      try<br />
      {<br />
        // Create an new instance of the USER_INFO struct.<br />
        USER_INFO objUserInfo = new USER_INFO();<br />
        IntPtr bufPtr; // Because it's an OUT, we don't need to alloc.<br />
        Int32 lngReturn = NetUserGetInfo(Environment.MachineName, Environment.UserName, 10, out bufPtr);<br />
        if (lngReturn == 0)<br />
        {<br />
          objUserInfo = (USER_INFO)Marshal.PtrToStructure(bufPtr, typeof(USER_INFO));<br />
          retVal = objUserInfo.fullname;<br />
        }<br />
        NetApiBufferFree(bufPtr);<br />
        bufPtr = IntPtr.Zero;<br />
      }<br />
      catch (Exception ex)<br />
      {<br />
        Console.WriteLine("GetFullname: " + ex.Message);<br />
      }<br />
      <br />
      return retVal;<br />
    }<br />
<br />
    public static void Main(String[] args)<br />
    {<br />
      Console.WriteLine("Login name: " + Environment.UserName);<br />
      Console.WriteLine("Full username: " + GetFullname());<br />
      Console.ReadLine();<br />
    }<br />
  }<br />
}