[Bug]: Dnn 10.2.1 breaks 2sxc because of changes in DnnJsInclude

[iJungleboy]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

Basically if 2sxc uses ClientDependency it crashes.
This started in 10.2.0 and got a fix in 10.2.1 but it not working properly.
The result is a full blown IIS crash, unhandled win32 exception

Reason is that 2sxc creates a DnnJsInclude and adds it to the page. We will change our code to work around the problem, but anybody upgrading DNN with a current or older 2sxc will crash the entire IIS process - see 2sic/2sxc#3717.

Here's how our code works:

var include = new DnnJsInclude 
{
    ForceProvider = DnnProviderName(clientAsset.PosInPage), 
    Priority = clientAsset.Priority, 
    FilePath = clientAsset.Url, 
    AddTag = false
};

// direct dependency on ClientDependency.Core.dll (included in default DNN installation)
if (clientAsset.HtmlAttributes?.Count > 0)
{
    // not important for this issue
}
// THIS IS WHERE IT BLOWS
page.FindControl("ClientResourceIncludes")?.Controls.Add(include);

The problem is probably here:

Dnn.Platform/DNN Platform/DotNetNuke.Web.Client/Controls/DnnJsInclude.cs

Lines 22 to 49 in ea2cc03

	[Obsolete("Deprecated in DotNetNuke 10.2.1. Use overload with IClientResourceController. Scheduled removal in v12.0.0.")]
	public DnnJsInclude()
	: this(null)
	{
	}
	/// <summary>Initializes a new instance of the <see cref="DnnJsInclude"/> class with default settings.</summary>
	/// <param name="clientResourceController">The client resources controller.</param>
	public DnnJsInclude(IClientResourceController clientResourceController)
	{
	this.clientResourceController = clientResourceController ?? DependencyInjection.GetCurrentServiceProvider().GetRequiredService<IClientResourceController>();
	this.ForceProvider = ClientResourceProviders.DefaultJsProvider;
	this.DependencyType = ClientDependencyType.Javascript;
	}
	/// <inheritdoc cref="IScriptResource.Async" />
	public bool Async { get; set; }
	/// <inheritdoc cref="IScriptResource.Defer" />
	public bool Defer { get; set; }
	/// <inheritdoc cref="IScriptResource.NoModule" />
	public bool NoModule { get; set; }
	/// <inheritdoc/>
	protected override void OnLoad(System.EventArgs e)
	{
	var script = this.clientResourceController.CreateScript(this.FilePath, this.PathNameAlias);

Basically an empty constructor was "added back" - which I guess was a great idea, but later on it expects a service which doesn't exist in the empty constructor scenario. My guess is that in certain cases, the empty constructor doesn't properly run this:

Dnn.Platform/DNN Platform/DotNetNuke.Web.Client/Controls/DnnJsInclude.cs

Lines 47 to 53 in ea2cc03

	protected override void OnLoad(System.EventArgs e)
	{
	var script = this.clientResourceController.CreateScript(this.FilePath, this.PathNameAlias);
	if (this.Async)
	{
	script = script.SetAsync();
	}

I guess the problem is that this property

Dnn.Platform/DNN Platform/DotNetNuke.Web.Client/Controls/DnnJsInclude.cs

Line 19 in ea2cc03

private readonly IClientResourceController clientResourceController;

My guess is as follows

1. I think that the compiler adds another empty constructor (just a guess) to web controls
2. ...and that we're probably calling that, instead of the new one but I'm just guessing. If my guess is correct, the this(null) would not be called. Or there is a problem that the built-in webcontrol base constructor is not called. again, just guessing.

So again: we'll create a 2sxc 21.0x soon to work around this, as we were only using this API to work around something, which was later added to DNN. But anybody upgrading DNN without previously upgrading 2sxc will run into problems.

My guess for a fix would be something like:

private IClientResourceController clientResourceController => field ??= DependencyInjection.GetCurrentServiceProvider().GetRequiredService<IClientResourceController>();

...might fix the problem - @donker

Steps to reproduce?

1. install any 2sxc up to v21.00.01 on the latest DNN.
2. Add a normal app or content-module, which wants to register JS dependencies.
3. See IIS crash.

Current Behavior

see above

Expected Behavior

No response

Relevant log output

Anything else?

No response

Affected Versions

10.2.0 (latest v10 release)

What browsers are you seeing the problem on?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[mitchelsellers]

Basically an empty constructor was "added back" - which I guess was a great idea, but later on it expects a service which doesn't exist in the empty constructor scenario. My guess is that in certain cases, the empty constructor doesn't properly run this:

The empty constructor calls this(null) which then calls the main constructor which has this line

this.clientResourceController = clientResourceController ?? DependencyInjection.GetCurrentServiceProvider().GetRequiredService<IClientResourceController>(); 

That line if it wasn't injected reaches out to the DI container to get the instance, so there shouldn't be any situation where later is having an issue. I also know that we have tested the empty constructor usage as being fixed with this addition, so this route MAY be a red herring just wanted to note that

[mitchelsellers]

@iJungleboy a few other questions as well

• Was there any entry in the logs (portals/_default/logs or Admin Logs)?
• the "ClientResourceIncludes" control that you reference is that a 2sxc control? Or is that something you are expecting from the framework?
• What version of DNN is 2sxc compiled against?

[iJungleboy]

@mitchelsellers

2sxc is compiled against DNN 9.6.1 as of now.
I'm not sure how this could affect the problem, but we did get the impression that if we compiled it against 10.2.1 the problem goes away as well; but I couldn't guess why this would be the case.

@tvatavuk best watch this issue as well.

[iJungleboy]

@tvatavuk could you maybe answer the other two questions?

[tvatavuk]

Thanks - answers inline:

• Logs (portals/_default/logs / Admin Logs):
  Nothing useful there. In this failure mode the AppPool / w3wp.exe is terminated, so DNN doesn’t get a chance to write a normal error entry (no 500 response, and even the expected DNN log file ends up 0 bytes). In the browser this looks like a hard connection drop.

  

• Where the exception shows up:
  The only traces we can find are in Windows Event Viewer (Application Error / .NET Runtime entries), e.g. a crash in w3wp.exe with KERNELBASE.dll and exception 0xe0434352.

  

• ClientResourceIncludes:
  That is a DNN control, not something from 2sxc. Our code path is based on older DNN source behavior. Reference in current DNN code here:
  DotNetNuke.Web.Client/ClientResourceManager.cs (the ClientResourceIncludes usage around this area):
  

  Dnn.Platform/DNN Platform/DotNetNuke.Web.Client/ClientResourceManager.cs

  Line 318 in 62b8299

  var loader = page.FindControl("ClientResourceIncludes");

• What DNN version 2sxc was compiled against:
  Historically, 2sxc was compiled against DNN 9.6.1.
  With the workaround/fix we now compile against DNN 9.11.0 (and we’ve tested the fix on DNN 9.13.10 and 10.2.1 as well).

[tvatavuk]

Windows Event Viewer (Application Error / .NET Runtime entries)

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:52:00
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: KERNELBASE.dll, verzija: 10.0.26100.7462, vremenska oznaka: 0xe9f9d656
Kod iznimke: 0xe0434352
Odmak greške: 0x00000000000c782a
ID procesa s greškom: 0xD1C0
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C77028875F
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: C:\WINDOWS\System32\KERNELBASE.dll
ID prijave: 37b2d25d-f2c1-4360-986f-efc23c51c113
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:52:00.9515392Z" />
    <EventRecordID>3662107</EventRecordID>
    <Correlation />
    <Execution ProcessID="32728" ThreadID="9724" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">KERNELBASE.dll</Data>
    <Data Name="ModuleVersion">10.0.26100.7462</Data>
    <Data Name="ModuleTimeStamp">e9f9d656</Data>
    <Data Name="ExceptionCode">e0434352</Data>
    <Data Name="FaultingOffset">00000000000c782a</Data>
    <Data Name="ProcessId">0xd1c0</Data>
    <Data Name="ProcessCreationTime">0x1dc80c77028875f</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">C:\WINDOWS\System32\KERNELBASE.dll</Data>
    <Data Name="IntegratorReportId">37b2d25d-f2c1-4360-986f-efc23c51c113</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:51:55
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: unknown, verzija: 0.0.0.0, vremenska oznaka: 0x00000000
Kod iznimke: 0xc0000005
Odmak greške: 0x00007ffe15438780
ID procesa s greškom: 0xD1C0
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C77028875F
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: unknown
ID prijave: 75ab15fb-14a0-445f-9ba4-409c8857c798
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:51:55.1480357Z" />
    <EventRecordID>3662105</EventRecordID>
    <Correlation />
    <Execution ProcessID="2136" ThreadID="23576" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">unknown</Data>
    <Data Name="ModuleVersion">0.0.0.0</Data>
    <Data Name="ModuleTimeStamp">00000000</Data>
    <Data Name="ExceptionCode">c0000005</Data>
    <Data Name="FaultingOffset">00007ffe15438780</Data>
    <Data Name="ProcessId">0xd1c0</Data>
    <Data Name="ProcessCreationTime">0x1dc80c77028875f</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">unknown</Data>
    <Data Name="IntegratorReportId">75ab15fb-14a0-445f-9ba4-409c8857c798</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

Log Name:      System
Source:        Microsoft-Windows-WAS
Date:          8.1.2026. 18:51:08
Event ID:      5011
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      XPS5
Description:
A process serving application pool '2sxc-dnn1021-t19.dnndev.me_nvQuickSite' suffered a fatal communication error with the Windows Process Activation Service. The process id was '33080'. The data field contains the error number.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-WAS" Guid="{524B5D04-133C-4A62-8362-64E8EDB9CE40}" EventSourceName="WAS" />
    <EventID Qualifiers="32768">5011</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:51:08.2409901Z" />
    <EventRecordID>750778</EventRecordID>
    <Correlation />
    <Execution ProcessID="6988" ThreadID="0" />
    <Channel>System</Channel>
    <Computer>XPS5</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="AppPoolID">2sxc-dnn1021-t19.dnndev.me_nvQuickSite</Data>
    <Data Name="ProcessID">33080</Data>
    <Binary>6D000780</Binary>
  </EventData>
</Event>

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:51:01
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: clr.dll, verzija: 4.8.9323.0, vremenska oznaka: 0x68c9b9f3
Kod iznimke: 0xc0000005
Odmak greške: 0x000000000002bedf
ID procesa s greškom: 0x8138
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C74E7A1F68
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
ID prijave: 15949c92-c0b1-4945-a30a-6a9e7b14ab71
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:51:01.3364225Z" />
    <EventRecordID>3662103</EventRecordID>
    <Correlation />
    <Execution ProcessID="34904" ThreadID="1028" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">clr.dll</Data>
    <Data Name="ModuleVersion">4.8.9323.0</Data>
    <Data Name="ModuleTimeStamp">68c9b9f3</Data>
    <Data Name="ExceptionCode">c0000005</Data>
    <Data Name="FaultingOffset">000000000002bedf</Data>
    <Data Name="ProcessId">0x8138</Data>
    <Data Name="ProcessCreationTime">0x1dc80c74e7a1f68</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll</Data>
    <Data Name="IntegratorReportId">15949c92-c0b1-4945-a30a-6a9e7b14ab71</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

Log Name:      Application
Source:        .NET Runtime
Date:          8.1.2026. 18:51:01
Event ID:      1023
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      XPS5
Description:
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an internal error in the .NET Runtime at IP 00007FFE6E7DBEDF (00007FFE6E7B0000) with exit code 80131506.

Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name=".NET Runtime" />
    <EventID Qualifiers="0">1023</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:51:01.0672990Z" />
    <EventRecordID>3662102</EventRecordID>
    <Correlation />
    <Execution ProcessID="33080" ThreadID="0" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an internal error in the .NET Runtime at IP 00007FFE6E7DBEDF (00007FFE6E7B0000) with exit code 80131506.
</Data>
  </EventData>
</Event>

Log Name:      System
Source:        Microsoft-Windows-WAS
Date:          8.1.2026. 18:50:36
Event ID:      5011
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      XPS5
Description:
A process serving application pool '2sxc-dnn1021-t19.dnndev.me_nvQuickSite' suffered a fatal communication error with the Windows Process Activation Service. The process id was '30804'. The data field contains the error number.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-WAS" Guid="{524B5D04-133C-4A62-8362-64E8EDB9CE40}" EventSourceName="WAS" />
    <EventID Qualifiers="32768">5011</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:50:36.7196075Z" />
    <EventRecordID>750777</EventRecordID>
    <Correlation />
    <Execution ProcessID="6988" ThreadID="0" />
    <Channel>System</Channel>
    <Computer>XPS5</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="AppPoolID">2sxc-dnn1021-t19.dnndev.me_nvQuickSite</Data>
    <Data Name="ProcessID">30804</Data>
    <Binary>6D000780</Binary>
  </EventData>
</Event>

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:50:22
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: KERNELBASE.dll, verzija: 10.0.26100.7462, vremenska oznaka: 0xe9f9d656
Kod iznimke: 0xe0434352
Odmak greške: 0x00000000000c782a
ID procesa s greškom: 0x7854
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C735ABBC19
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: C:\WINDOWS\System32\KERNELBASE.dll
ID prijave: 4d0ec2f9-1dd5-4c20-8890-92f4cee2c871
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:50:22.6446917Z" />
    <EventRecordID>3662100</EventRecordID>
    <Correlation />
    <Execution ProcessID="8556" ThreadID="33928" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">KERNELBASE.dll</Data>
    <Data Name="ModuleVersion">10.0.26100.7462</Data>
    <Data Name="ModuleTimeStamp">e9f9d656</Data>
    <Data Name="ExceptionCode">e0434352</Data>
    <Data Name="FaultingOffset">00000000000c782a</Data>
    <Data Name="ProcessId">0x7854</Data>
    <Data Name="ProcessCreationTime">0x1dc80c735abbc19</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">C:\WINDOWS\System32\KERNELBASE.dll</Data>
    <Data Name="IntegratorReportId">4d0ec2f9-1dd5-4c20-8890-92f4cee2c871</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:50:17
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: unknown, verzija: 0.0.0.0, vremenska oznaka: 0x00000000
Kod iznimke: 0xc0000005
Odmak greške: 0x00007ffe15418780
ID procesa s greškom: 0x7854
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C735ABBC19
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: unknown
ID prijave: 173690a9-3b2d-4dc6-ac26-109e61929f5d
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:50:17.1748774Z" />
    <EventRecordID>3662098</EventRecordID>
    <Correlation />
    <Execution ProcessID="56032" ThreadID="38016" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">unknown</Data>
    <Data Name="ModuleVersion">0.0.0.0</Data>
    <Data Name="ModuleTimeStamp">00000000</Data>
    <Data Name="ExceptionCode">c0000005</Data>
    <Data Name="FaultingOffset">00007ffe15418780</Data>
    <Data Name="ProcessId">0x7854</Data>
    <Data Name="ProcessCreationTime">0x1dc80c735abbc19</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">unknown</Data>
    <Data Name="IntegratorReportId">173690a9-3b2d-4dc6-ac26-109e61929f5d</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

Log Name:      System
Source:        Microsoft-Windows-WAS
Date:          8.1.2026. 18:49:59
Event ID:      5011
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      XPS5
Description:
A process serving application pool '2sxc-dnn1021-t19.dnndev.me_nvQuickSite' suffered a fatal communication error with the Windows Process Activation Service. The process id was '44292'. The data field contains the error number.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-WAS" Guid="{524B5D04-133C-4A62-8362-64E8EDB9CE40}" EventSourceName="WAS" />
    <EventID Qualifiers="32768">5011</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:49:59.0672322Z" />
    <EventRecordID>750776</EventRecordID>
    <Correlation />
    <Execution ProcessID="6988" ThreadID="0" />
    <Channel>System</Channel>
    <Computer>XPS5</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="AppPoolID">2sxc-dnn1021-t19.dnndev.me_nvQuickSite</Data>
    <Data Name="ProcessID">44292</Data>
    <Binary>6D000780</Binary>
  </EventData>
</Event>

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:48:55
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: KERNELBASE.dll, verzija: 10.0.26100.7462, vremenska oznaka: 0xe9f9d656
Kod iznimke: 0xe0434352
Odmak greške: 0x00000000000c782a
ID procesa s greškom: 0xAD04
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C6EF9EB93E
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: C:\WINDOWS\System32\KERNELBASE.dll
ID prijave: ea31557a-fc51-4f51-a9a0-08ec1d60477c
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:48:55.8512156Z" />
    <EventRecordID>3662096</EventRecordID>
    <Correlation />
    <Execution ProcessID="37920" ThreadID="8036" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">KERNELBASE.dll</Data>
    <Data Name="ModuleVersion">10.0.26100.7462</Data>
    <Data Name="ModuleTimeStamp">e9f9d656</Data>
    <Data Name="ExceptionCode">e0434352</Data>
    <Data Name="FaultingOffset">00000000000c782a</Data>
    <Data Name="ProcessId">0xad04</Data>
    <Data Name="ProcessCreationTime">0x1dc80c6ef9eb93e</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">C:\WINDOWS\System32\KERNELBASE.dll</Data>
    <Data Name="IntegratorReportId">ea31557a-fc51-4f51-a9a0-08ec1d60477c</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

Log Name:      Application
Source:        Application Error
Date:          8.1.2026. 18:48:48
Event ID:      1000
Task Category: Događaji pada aplikacije
Level:         Error
Keywords:      
User:          IIS APPPOOL\2sxc-dnn1021-t19.dnndev.me_nvQuickSite
Computer:      XPS5
Description:
Naziv aplikacije s greškom: w3wp.exe, verzija: 10.0.26100.1882, vremenska oznaka: 0xc6bd45bd
Naziv modula s greškom: unknown, verzija: 0.0.0.0, vremenska oznaka: 0x00000000
Kod iznimke: 0xc0000005
Odmak greške: 0x00007ffe1542c9b0
ID procesa s greškom: 0xAD04
Vrijeme pokretanja aplikacije s greškom: 0x1DC80C6EF9EB93E
Put do aplikacije s greškom: c:\windows\system32\inetsrv\w3wp.exe
Put do modula s greškom: unknown
ID prijave: c60b081c-e14d-4e9c-9386-eef5bfd4ab73
Puni naziv paketa s greškom: 
Relativni ID paketa aplikacije s greškom: 
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Application Error" Guid="{a0e9b465-b939-57d7-b27d-95d8e925ff57}" />
    <EventID>1000</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>100</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2026-01-08T17:48:48.7962030Z" />
    <EventRecordID>3662094</EventRecordID>
    <Correlation />
    <Execution ProcessID="32504" ThreadID="38616" />
    <Channel>Application</Channel>
    <Computer>XPS5</Computer>
    <Security UserID="S-1-5-82-1562653241-3728031256-1515857543-3786066581-1660323734" />
  </System>
  <EventData>
    <Data Name="AppName">w3wp.exe</Data>
    <Data Name="AppVersion">10.0.26100.1882</Data>
    <Data Name="AppTimeStamp">c6bd45bd</Data>
    <Data Name="ModuleName">unknown</Data>
    <Data Name="ModuleVersion">0.0.0.0</Data>
    <Data Name="ModuleTimeStamp">00000000</Data>
    <Data Name="ExceptionCode">c0000005</Data>
    <Data Name="FaultingOffset">00007ffe1542c9b0</Data>
    <Data Name="ProcessId">0xad04</Data>
    <Data Name="ProcessCreationTime">0x1dc80c6ef9eb93e</Data>
    <Data Name="AppPath">c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data Name="ModulePath">unknown</Data>
    <Data Name="IntegratorReportId">c60b081c-e14d-4e9c-9386-eef5bfd4ab73</Data>
    <Data Name="PackageFullName">
    </Data>
    <Data Name="PackageRelativeAppId">
    </Data>
  </EventData>
</Event>

[bdukes]

According to The Internet™️the exit code in those error messages is ExecutionEngineException (see Stack Overflow answer).

One guess that I have is that removing CDF forced us to change the base class of the DnnJsInclude control, which perhaps violates the assumptions of code compiled against the older version.

We can experiment with adding ClientDependency.Core.dll back and updating the base class to see if that resolves this scenario. If so, I suppose we need to wait to remove that reference until at least 11.0.

[valadas]

Sounds like a good idea, and we have an easy scenario to test it out.