Here's a sample I'd cooked up some time ago on my machine.

using System;
using System.Collections.Generic;
using System.Text;
using iAnywhere.Data.UltraLite;

namespace simple
{
  class Program
  {
    static void Main(string[] args)
    {
      ULConnection Conn;

try {
        ULDatabaseManager.RuntimeType = ULRuntimeType.STANDALONE_UL;
        String ConnString = "dbf="+ args[0] + "\\" + args[0] + ".udb";
        Conn = new ULConnection( ConnString );
        Conn.Open();
        Conn.SyncParms.Version = "v1";
        Conn.SyncParms.UserName = args[0];
        Conn.SyncParms.Password = "sql";
        Conn.SyncParms.Stream = ULStreamType.TCPIP;
        Conn.SyncParms.StreamParms = "host=localhost";
        Conn.Synchronize();
        Console.WriteLine( "SyncResults" );
        Console.WriteLine( "== AuthStatus is " + Conn.SyncResult.AuthStatus );
        Console.WriteLine( "== AuthValue is " + Conn.SyncResult.AuthValue  );
        Console.WriteLine( "== IgnoredRows is " + Conn.SyncResult.AuthValue );
        Console.WriteLine( "== PartialDownloadRetained is " + Conn.SyncResult.PartialDownloadRetained );
        Console.WriteLine( "== StreamErrorCode is " + Conn.SyncResult.StreamErrorCode );
        Console.WriteLine( "== StreamErrorContext is " + Conn.SyncResult.StreamErrorContext );
        Console.WriteLine( "== StreamErrorID is " + Conn.SyncResult.StreamErrorID );
        Console.WriteLine( "== StreamErrorSystem is " + Conn.SyncResult.StreamErrorSystem );
        Console.WriteLine( "== Timestamp is " + Conn.SyncResult.Timestamp );
        Console.WriteLine( "== UploadOK is " + Conn.SyncResult.UploadOK );
        Conn.Close();
      } catch ( Exception t ) {
        Console.WriteLine( "Exception: " + t.ToString());
      }

}
  }
}

Just create a file named simple.cs with the code above in it, and then complile it with something similar to :

csc /platform:x86 /debug /out:simple.exe /target:exe /reference:"%SQLANY12%\ultralite\ultralite.net\assembly\v2\iAnywhere.Data.UltraLite.dll" simple.cs

If you want an application along with the full source code, have a look at the AdventureWorks Windows Mobile samples here:

http://www.sybase.com/detail?id=1065480

It contains an UL.NET sample and you can see some of the code right on that web page. You can also download the complete Visual Studio project.

José