We have found that installing Microsoft .NET Framework 4.7 will break Imaging 4.x's Search and Viewer.
Windows Update lists the Microsoft .NET Framework 4.7 for Windows 8.1 and Windows Server 2012 R2 for x64 (KB3186539) as a "Recommended Update." Microsoft has identified the issue with the .Net 4.7 update and will be fixing this in the future.
We do not recommend installing this update if you are running Imaging 4.10. Alternatively, you can update to Imaging 4.10.1 which supports .NET 4.7.
Here are the KB numbers for the other .NET 4.7 Redistributables:
.NET Framework 4.7 for Windows 7/Windows Server 2008 R2: KB3186497
.NET Framework 4.7 for Windows Server 2012: KB3186505
.NET Framework 4.7 for Windows 8.1/Windows Server 2012 R2: KB3186539
.NET Framework 4.7 for Windows 10 Version 1607/Windows Server 2016: KB3186568
Update: We have also determined that KB4034658 for Windows Server 2016 will break Imaging 4.x's Search and Viewer.
You can easily see these KB numbers by opening a command prompt and typing:
systeminfo
This command will list all of your system information, and included in this information are all of the KB's that are installed.
Sample error you may see in the logs:
[NullReferenceException: Object reference not set to an instance of an object.] KnowledgeLake.Imaging.View.Services.Configuration.ConfigurationService.LoadImagingProviders() +231 KnowledgeLake.Imaging.View.Services.Configuration.ConfigurationService.EnsureConfiguration() +104 KnowledgeLake.Imaging.View.Services.Configuration.ConfigurationService.GetConfiguredCulture() +24 KnowledgeLake.Imaging.SharePoint.ApplicationPages.View.HtmlViewer.GetConfiguredCulture() +12 ASP.default_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) +51 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +113 System.Web.UI.Page.Render(HtmlTextWriter writer) +38 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +131 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +9610
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