c# solution ... in this case profile is the group name.
//file = @"C:\Program Files (x86)\Cisco\Cisco AnyConnect Secure Mobility Client\vpncli.exe"
var file = vpnInfo.ExecutablePath;
var host = vpnInfo.Host;
var profile = vpnInfo.ProfileName;
var user = vpnInfo.User;
var pass = vpnInfo.Password;
var confirm = "y";
var proc = new Process
{
    StartInfo = new ProcessStartInfo
    {
        FileName = file,
        Arguments = string.Format("-s"),
        UseShellExecute = false,
        RedirectStandardInput = true,
        RedirectStandardOutput = true,
        RedirectStandardError = true,
    }
};
proc.OutputDataReceived += (s, a) => stdOut.AppendLine(a.Data);
proc.ErrorDataReceived += (s, a) => stdOut.AppendLine(a.Data);
//make sure it is not running, otherwise connection will fail
var procFilter = new HashSet<string>() { "vpnui", "vpncli" };
var existingProcs = Process.GetProcesses().Where(p => procFilter.Contains(p.ProcessName));
if (existingProcs.Any())
{
    foreach (var p in existingProcs)
    {
        p.Kill();
    }
}
proc.Start();
proc.BeginOutputReadLine();
//simulate profile file
var simProfile = string.Format("{1}{0}{2}{0}{3}{0}{4}{0}{5}{0}"
    , Environment.NewLine
    , string.Format("connect {0}", host)
    , profile
    , user
    , pass
    , confirm
    );
proc.StandardInput.Write(simProfile);
proc.StandardInput.Flush();
//todo: these should be configurable values
var waitTime = 500; //in ms
var maxWait = 10;
var count = 0;
var output = stdOut.ToString();
while (!output.Contains("state: Connected"))
{
    if (count > maxWait)
        throw new Exception("Unable to connect to VPN.");
    Thread.Sleep(waitTime);
    output = stdOut.ToString();
    count++;
}
stdOut.Append("VPN connection established! ...");