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Rank: Newbie Groups: Member
Joined: 6/26/2017 Posts: 9
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We have an Outlook VSTO Addin and use a WebBrowser to display a dashboard. This was working quite happily with previous Windows 10 updates (1903 and earlier) until last week when the latest Windows 10 1909 update was installed. Since then on loading the Add-in Dashboard the exception is thrown with the following errors messages: EO.Base.Runtime_Exception : Attempted to read or write protected memory. This is often an indication that other memory is corrupt. EO.Base.Runtime_Exception : This WebView either has already been destroyed or is being destroyed. Are there any known issues with the WebBrowser and the latest Windows update?
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Rank: Administration Groups: Administration
Joined: 5/27/2007 Posts: 24,218
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Hi,
We have not been able to test this yet because non of our system have received 1909 yet. We will test it as soon as we get the update. In the mean time can you handle EO.Base.Runtime.Exception event and then get e.ErrorException's strack trace and post it here?
Thanks!
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Rank: Newbie Groups: Member
Joined: 6/26/2017 Posts: 9
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The Stack Trace is:
This WebView either has already been destroyed or is being destroyed. at EO.Base.Runtime.a(Object A_0, Exception A_1, Boolean A_2) at EO.WebBrowser.WebView.a(Exception A_0, Boolean A_1)\r\n at EO.WebBrowser.WebView.p() at EO.WebBrowser.WebView.a(String A_0, Boolean A_1)\r\n at EO.WebBrowser.WebView.LoadUrl(String url) at OutlookTime_Add_in.BrowserAgent_EO.set_DashboardURL(String value) in D:\\Mercurial VS 2015\\OutlookTime Add-in Core\\OutlookTime Add-in\\BrowserAgent_EO.cs:line 226 at OutlookTime_Add_in.TimeGridControl.PopulateDashboard(Double totalWeeklyAppointmentsHoursToBeSubmitted, Int32 totalAppointmentsToBeSubmitted, Int32 unpostedOutlookAppointments, Int32 outlookAppointmentsWithNoJob) in D:\\Mercurial VS 2015\\OutlookTime Add-in Core\\OutlookTime Add-in\\TimeGridControl.cs:line 5277"
Thanks
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Rank: Administration Groups: Administration
Joined: 5/27/2007 Posts: 24,218
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Hi,
What is the stack trace for the first exception "Attempted to read or write protected memory"? That one most likely is the cause of the second one.
Thanks!
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Rank: Newbie Groups: Member
Joined: 6/26/2017 Posts: 9
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A colleague was getting the first exception "Attempted to read or write protected memory" and is no longer getting it. I'm still getting the second exception "This WebView either has already been destroyed or is being destroyed."
We will monitor the situation, but the second exception is still causing a problem.
Cheers
Julie
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Rank: Administration Groups: Administration
Joined: 5/27/2007 Posts: 24,218
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Do you get this exception every time or just occasionally?
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Rank: Newbie Groups: Member
Joined: 6/26/2017 Posts: 9
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Every time
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