Unable to locate the iexplorer.exe process after closing

I wrote a method to close all open browsers before I start my tests (code below).



At the end of my test I have a step to type ~[F4] to close the browser.  What seems to be happening is the alt-F4 doesn't actually close internet explorer.  I mean it closes the user interface, but the process sticks around.  The next time I run the test and the CloseBrowsers method gets called, the Sys.WaitProcess line gets stuck or hangs or freezes.  Those terms aren't exactly accurate as I can still use everything on the system, but the execution will not continue and cannot be stopped without terminating the iexplorer.exe process myself.



I actually had 'FindAll' instead of WaitProcess at one point, but it did the same thing.



I want to continue to use alt-F4 to close the browser if possible rather than a close method (for reasons too boring to go in to here).

 /**


  * @readonly


  * @enum {integer} Browser


  */


 var Browser = {


     Chrome:     btChrome,


     Firefox:    btFirefox,


     IExplore:   btIExplorer,


     Opera:      btOpera,


     Safari:     btSafari


 };




 /**


      * @summary Closes all open browsers


      */


     CloseBrowsers = function ()


     {


         var resumeNext = false;


         // Make linters happy


         for (var browserName in Browser)


         {


             resumeNext = false;


             while (!resumeNext)


             {


                 var process = Sys.WaitProcess(browserName, 0, 1);


                 if (process.Exists)


                 {


                     process.Close(10000);


                     if (process.Exists)


                     {


                         process.Terminate();


                         aqUtils.Delay(500, "Terminating process...");


                     }


                 }


                 else


                 {


                     resumeNext = true;


                 }


             }


         }


     };