title: How to set path for executable IE drivers in Selenium WebDriver
body: <p>I am trying to run the following code on my machine (win XP &amp; IE8)</p>
  
  <pre><code>public class bookie {                
    private WebDriver driver;        
    private String baseUrl;         
    private boolean acceptNextAlert = true;        
    private StringBuffer verificationErrors = new StringBuffer();        
  
    @Before    
    public void setUp() throws Exception {    
      DesiredCapabilities caps = DesiredCapabilities.internetExplorer();    
      caps.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS,true);    
      driver = new InternetExplorerDriver(caps);     
      baseUrl = "http://book.theautomatedtester.co.uk/";     
      driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);    
    }
  
    @Test     
    public void testbookie() throws Exception {    
      System.setProperty("webdriver.ie.driver", "IEDriverServer.exe");    
      driver.get(baseUrl + "/");    
      driver.findElement(By.linkText("Chapter1")).click();    
      driver.findElement(By.id("radiobutton")).click();    
      new Select(driver.findElement(By.id("selecttype"))).selectByVisibleText("Selenium Core");    
      driver.findElement(By.linkText("Home Page")).click();     
      driver.findElement(By.linkText("Chapter2")).click();    
      driver.findElement(By.id("but1")).click();     
      driver.findElement(By.xpath("//input[@value='Sibling Button']")).click();     
      driver.findElement(By.linkText("Index")).click();      
      driver.findElement(By.linkText("Chapter1")).click();     
      new Select(driver.findElement(By.id("selecttype"))).selectByVisibleText("Selenium Grid");     
      driver.findElement(By.linkText("Home Page")).click();      
      driver.quit();
    }
  </code></pre>
  
  <p><strong>But the stack trace which i was provided is</strong></p>
  
  <blockquote>
    <p>java.lang.IllegalStateException: The path to the driver executable
    must be set by the webdriver.ie.driver system property;   at
    org.openqa.selenium.remote.service.DriverService.findExecutable(DriverService.java:105)
      at
    org.openqa.selenium.ie.InternetExplorerDriverService.access$1(InternetExplorerDriverService.java:1)
      at
    org.openqa.selenium.ie.InternetExplorerDriverService$Builder.build(InternetExplorerDriverService.java:230)
      at
    org.openqa.selenium.ie.InternetExplorerDriver.setupService(InternetExplorerDriver.java:263)
      at
    org.openqa.selenium.ie.InternetExplorerDriver.(InternetExplorerDriver.java:182)
      at
    org.openqa.selenium.ie.InternetExplorerDriver.(InternetExplorerDriver.java:159)
      at bookie.setUp(bookie.java:19)     at
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)   at
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)   at
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)   at
    java.lang.reflect.Method.invoke(Unknown Source)   at
    org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
      at
    org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      at
    org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
      at
    org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
      at
    org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
      at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)    at
    org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
      at
    org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
      at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)  at
    org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)   at
    org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)     at
    org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)   at
    org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)  at
    org.junit.runners.ParentRunner.run(ParentRunner.java:309)     at
    org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
      at
    org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
      at
    org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
      at
    org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
      at
    org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
      at
    org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)</p>
  </blockquote>