why IE is shown when navigating a HTTPS URL in VBS script on windows7?

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  We have a VBS script which will navigate a URL as following:
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  Set oIE = CreateObject("InternetExplorer.Application")
  oIE.navigate "https://mgr.xxx.com:8443/"
  WScript.Echo "wait.."&counter & ": oIE.ReadyState="&oIE.ReadyState& ": oIE.busy=" & oIE.Busy
  counter = 0
  While (oIE.busy = true or oIE.ReadyState < READYSTATE_COMPLETE) And counter < 200
  counter = counter + 1
  wscript.sleep 1000
  WScript.Echo "wait.."&counter & ": oIE.ReadyState="&oIE.ReadyState& ": oIE.busy=" & oIE.Busy
  Wend
  --------------------------------------------------------------------------------
  The script works well for 2003/XP/2008/Vista and so on. But on Windows7 it will shown an IE browser and cannot be hidden, even if we set "oIE.visible = false". We have tried for many times and found that:
  1. if we change the bold URL to a famous internet HTTPS URL, such as "HTTPS://www.gmail.com" and "HTTPS://www.comodo.com" then it works and no IE browser is shown;
  2. if we change the bold URL to an intranet HTTP URL, such as "http://mgr.xxx.com:8080", then it works and no IE browser is shown.
  So seems IE browser only shown up for an intranet HTTPS URL. What's the problem?

  Tuesday, October 19, 2010 4:40 AM