title: Make WebBrowser control to delete its cache
body: <p>so i am making a test application which login to a website and if given credentials are valid then separates them. when my webbrowser get successful login and program starts to repeat to process in order to check remaining credentials the logged in account gets cached. i tried </p>
  
  <pre><code>Me.WebBrowser1.Refresh(WebBrowserRefreshOption.Completely)
  </code></pre>
  
  <p>and couple of other methods like nevigating to about:blank but no success even when i restart the program webbrowser1 opens to cached logged in account. i want to make web browser at rully reset(startup) state after getting good login. </p>