Why does Outlook launch IE in the background?

Anonymous
2017-05-09T14:01:44+00:00

Hello,

We are using Office 365 ProPlus on Windows 10 Pro.  Opening Outlook (16.0.7927.1020) will launch two background processes of IE (iexplore.exe).  Why does Outlook open IE?  

This behavior does not happen in earlier versions of Office 365 ProPlus, such as 16.0.6001.1041.  It appears that an update for Office 365 ProPlus is causing Outlook to open IE in the background.

Thank you,

Evan

Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2018-08-06T05:07:59+00:00

    I have the same problem. One thing I noticed, if I go to task manager, and click on the outlook.exe under processes, it opens.

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  2. Anonymous
    2018-08-21T12:08:40+00:00

    If it was fixed in 1806 its now broken again in 1807 as still getting 2 x iexplore.exe process on Outlook launch.  On outlook close one of the iexplore.exe ends but one remains.  On outlook open 2 x iexplore.exe end and still left with one rogue iexplore.exe process.

    The rogue iexplore.exe has command line of:

    "C:\Program Files\Internet Explorer\iexplore.exe" -startmanager -Embedding

    Seems quite hit and miss, sometimes all the iexplore.exe end on outlook exit.  Also might be how long outlook is left open as to whether all the iexplorer.exe process will end on exit or not. Nothing better than inconsistent results to further complicate and already complicated issue!

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  3. Anonymous
    2018-08-22T15:08:54+00:00

    We're seeing that here as well (I reprod on 16.0.10815.20000). It doesn't appear to repro if protected mode is set to the defaults. Dev is investigating.

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  4. Anonymous
    2018-09-18T21:39:49+00:00

    We're seeing that here as well (I reprod on 16.0.10815.20000). It doesn't appear to repro if protected mode is set to the defaults. Dev is investigating.

    I subscribed to Office 365 two days ago and installed it on Win 10 and Win 7.  I have the problem on both machines.

     1212  iexplore          Office Preload - Internet Explorer

     1832  iexplore          Office Preload - Internet Explorer

    It has been 16 months since this thread was started and there has been no proper fix and no explanation of why the behavior is necessary.

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  5. Anonymous
    2018-09-28T19:50:20+00:00

    I, too, was encountering terrible performance with Outlook in the last week and especially the last few days.

    We connect to Exchange Online and have used the Dynamics 365 COM add-in.

    Upon starting Outlook, we would see up to 6 IE threads start under Outlook (3 - 32 Bit and 3 non-identified)

    We disabled the COM add-in and Outlook instantly began performing much better and the IE instances DID NOT start.

    Not sure if this is relevant to your issue but, an FYI!

    Still needs resolution, as we use the Dynamics add in for attaching emails to cases, etc...

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