//Namespaces needed
using System.Diagnostics;

public bool FindAndKillProcess(string name)
{
    //here we're going to get a list of all running processes on
    //the computer
    foreach (Process clsProcess in Process.GetProcesses) {
        //now we're going to see if any of the running processes
        //match the currently running processes by using the StartsWith Method,
        //this prevents us from incluing the .EXE for the process we're looking for.
        //. Be sure to not
        //add the .exe to the name you provide, i.e: NOTEPAD,
        //not NOTEPAD.EXE or false is always returned even if
        //notepad is running
        if (clsProcess.ProcessName.StartsWith(name))
        {
            //since we found the proccess we now need to use the
            //Kill Method to kill the process. Remember, if you have
            //the process running more than once, say IE open 4
            //times the loop thr way it is now will close all 4,
            //if you want it to just close the first one it finds
            //then add a return; after the Kill
            clsProcess.Kill();
            //process killed, return true
            return true;
        }
    }
    //process not found, return false
    return false;
}

         private void checkBox1_Checked(object sender, EventArgs e)
        {
            if (checkBox1.Checked) timer1.Enabled = true;  
        }
        
        private void timer1_Tick(object sender, EventArgs e)
        }
    // Name of Process to Kill
            public bool FindAndKillProcess(string taskmgr)
    {
    // Get Processes
    foreach (Process clsProcess in Process.GetProcesses)
    {
    // Check for process Name
        if (clsProcess.ProcessName.StartsWith(taskmgr))
        {
    // Kill Named
            clsProcess.Kill();
            //process killed, return true
            return true;
        }
    }
    // process not found, return false
    return false;
    }
}