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Failed to start image manager Options
Sören
Posted: Thursday, September 16, 2021 10:22:01 AM
Rank: Member
Groups: Member

Joined: 5/14/2020
Posts: 19
I have a problem with the EO.WebBrowser for .NET.

For a customer I get an error when starting our application that uses the WebBrowser:

Failed to start image manager

at EO.Base.Runtime.rpjo(Object ltg, Exception lth, Boolean lti)
at EO.Internal.lwph.dczf.waas()
at EO.Internal.lwph.sjvk()
at EO.Internal.lwph.sjvj(Boolean& nmk, lwpk[] nml, String nmm, String nmn)
at EO.Internal.lwph.waas(lwpk[] nmh, String nmi, String nmj)
at EO.Internal.lwpi.waas(String nrl, String nrm)
at EO.Internal.nydq.cnvj()
at EO.Internal.nydq.huri.vaty()
at EO.Internal.lwku.vysk(Action lul)
at EO.Internal.nydq.mnfi(WindowsIdentity fg)
at EO.WebEngine.Engine.Start(WindowsIdentity user)
at EO.WebEngine.Engine.Start()
at EO.Internal.nydq.cnvi()
at EO.Internal.egex..ctor(WebView p)
at EO.WebBrowser.WebView.nror()
at EO.WebBrowser.WebView.nror(IntPtr fp, Boolean fq)
at EO.WebBrowser.WebView.Create(IntPtr hWnd)
at EO.Wpf.WebViewHost.frhd.kvtx()


After my research on the internet, I would guess that the cause of the error is that the eowp.exe cannot be started.

The customer uses AppLocker, but has EssentialObjects enabled as the publisher and our application has been working there. Only after updating the application the above error occurs.

The application uses version 21.1.67 of EssentialObjects. The version of eowp.exe, however, is 20.3.34. This file can also be executed via the command line. I get the following output

eowp.exe
This program is a part of EO.Total.
AddMissingAPIModule:kernel32.dll
AddMissingAPIModule:user32.dll
AddMissingAPIModule:d3d11.dll
AddMissingAPIModule:dxgi.dll
AddMissingAPIModule:dxva2.dll
AddMissingAPIModule:dwrite.dll
AddMissingAPIModule:shell32.dll
AddMissingAPIModule:dbghelp.dll
AddMissingAPIModule:msdmo.dll


The following details are output about the error:

Exception:
System.Exception: Failed to start image manager
bei EO.Internal.lwph.dczf.ytyw()
bei EO.Internal.lwph.dczf.waas()

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End_Block_1

Begin_Block_2
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UA==
End_Block_2


eo_support
Posted: Thursday, September 16, 2021 3:00:23 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 24,067
Hi,

The version of eowp.exe MUST match the version of the DLL. So you can try to replace the wrong eowp.exe with the correct one first and see if it works for you.

Alternatively, you can also change your code to automatically create eowp.exe by calling this method:

https://www.essentialobjects.com/doc/eo.base.runtime.initworkerprocessexecutable.aspx

Thanks!


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