NuRoN Consulting, INC

 So you want to know if a process is running...

using System.Diagnostics;

public static bool IsProcessAlreadyRunning()
{
    Process currentProcess = Process.GetCurrentProcess();
     List<Process> processes = Process.GetProcesses().Where(x=>x.ProcessName == currentProcess.ProcessName).ToList<Process>();
     return (processes.Count > 1);
}

Enjoy!