Windows 10: System.Runtime.InteropServices.COMException 0x80004005: Unable to create specified ActiveX...

We had come across with the very strange issue with one of our customer.

Where our Office Add-In loads and shows in ribbon but only the creation of Taskane with ActiveX control is not working with exceptionUnable to create specified ActiveX control when the UAC is disabled.


Taskpane with ActiveX control seems to be loading only when UAC settings changed to any level and without clicking OKI mean without applying the UAC settings.


Creation of Taskpane with ActiveX control fails when UAC settings changed and clicked OKI mean UAC settings are applied and the same behavior observed post restarting the machine again.



The error we see on the logs is "System.Runtime.InteropServices.COMException 0x80004005: Unable to create specified ActiveX control".

We couldn't able to replicate this issue from our side.

Customer trying our Add-In with newly imaged virtual machines and their OS is Windows 10Version 1803OS Build 17134 1667,MS Office 2016 and .Net framework version : 4.8.03761

Is it related to any Microsoft patches for Office 2016 OR .NET Framework 4.8?

Customer wants to know on the particular update causing this issue.

We used to change UAC settings to top 3 levels as a workaround and that resolved similar issues for different customers but that is not helping this customer now.

Please help here on this issue

Thanks in advance.

:)

 

System. Runtime. InteropServices. COMException (0x80004005): Calls to COM components return an error HRESULT E_FAIL.

Hello:

I have some problem in Windows 7 x32 and x64 OS, When I use the same code in windows 10 OS, Its works fine without this exception.

I copy UIAtutomationCore.dll file from windows 7 OS to windows 10 OS. The UIAutomationCore.dll file is converted in windows 10 OS. (C:\UIA>TlbImp.exe UIAutomationCore.dll /out:Interop.UIAutomationCore.dll) . Mistakes do not happen every single time,
but occasionally.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Runtime.InteropServices;

using System.Text;

using System.Threading;

using Interop.UIAutomationCore;

namespace ConsoleTest

{

class Program

{

static IUIAutomationCondition propertyCondition;

static CUIAutomation _automation = new CUIAutomation();

static void Main(string[] args)

{

IUIAutomationCondition controlTypecondition = _automation.CreatePropertyCondition(UIA_PropertyIds.UIA_ControlTypePropertyId, UIA_ControlTypeIds.UIA_ButtonControlTypeId);

IUIAutomationCondition nameCondition = _automation.CreatePropertyCondition(UIA_PropertyIds.UIA_NamePropertyId, "ButtonName");

IUIAutomationCondition condition = _automation.CreateAndCondition(controlTypecondition, nameCondition);

try

{

IUIAutomationElement targetElement = _automation.GetRootElement().FindFirst(TreeScope.TreeScope_Subtree, nameCondition);

}

catch(COMException ex)

{

Console.WriteLine(ex.ToString());

}

Console.ReadKey();

}

}

}

The error message is as follows:

System. Runtime. InteropServices. COMException (0x80004005): Calls to COM components return an error HRESULT E_FAIL.

In Interop. UI Automation Core. IUI Automation Element. FindFirst (TreeScope scope, IUI Automation Condition)

Looking forward to your reply, thank you.

 

How to fix "Runtime Error '429': Activex Component Can't Create Object Microsoft Retail Management System using Windows 10 Pro 64bit"

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I get the error message "sqldmo.dll failed to register. Retry Abort or Ignore" I tried all 3 and when I try to start the program I get a message saying that "Runtime Error '429': Activex Component Can't Create Object. Can anyone help me please withthis problem?