The Process component is a useful tool for starting, stopping, controlling, and monitoring applications. A process is a running application and a thread is the basic unit to which the operating system allocates processor time. Using the Process component, you can obtain a list of the processes that are running, or you can start a new process.
GetProcessesByName(String) - Creates an array of new Process components and associates them with all the process resources on the local computer that share the specified process name.
Dim _proceses As Process() _proceses = Process.GetProcessesByName("calc")
The above syntax retrieve all the process associated with "calc" application in the _proceses array. System.Diagnostics provides access to local and remote processes and enables you to start and stop local system processes.
FULL CODE :
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click System.Diagnostics.Process.Start("calc") End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim _proceses As Process() _proceses = Process.GetProcessesByName("calc") For Each proces As Process In _proceses proces.Kill() Next End Sub End Class