Skip to main content
Nintex Community Menu Bar
Question

Facing issues while Installing the Nintex K2 Automate Latest version in WindowsServer 2025 Data Center

  • March 31, 2026
  • 3 replies
  • 14 views

Forum|alt.badge.img

In the initial Setup Manager. I Clicked on the Full Installation and then once entering the License Key the setup manager got crashed.

I am seeing the below logs in the event Viewer.

 

Application: SourceCode.SetupManager.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.AccessViolationException
   at <Module>.K2LicenseUtils.DecryptString(ATL.CStringT<wchar_t,ATL::StrTraitATL<wchar_t,ATL::ChTraitsCRT<wchar_t> > >*, ATL.CStringT<wchar_t,ATL::StrTraitATL<wchar_t,ATL::ChTraitsCRT<wchar_t> > >*, ATL.CStringT<wchar_t,ATL::StrTraitATL<wchar_t,ATL::ChTraitsCRT<wchar_t> > >*)
   at SourceCode.Licensing.K2LicenseValidator.ValidateLicenseKeyV1(System.String, System.String)
   at SourceCode.Licensing.K2LicenseValidator.ValidateLicenseKey(System.String, System.String)

Exception Info: System.Exception
   at SourceCode.Licensing.K2LicenseValidator.ValidateLicenseKey(System.String, System.String)

Exception Info: System.Reflection.TargetInvocationException
   at System.RuntimeMethodHandle.InvokeMethod(System.Object, System.Object[], System.Signature, Boolean)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(System.Object, System.Object[], System.Object[])
   at System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo)
   at SourceCode.Install.Licensing.Licensing.ValidLicense()
   at SourceCode.SetupManager.UI.Panels.LicensePanel.ValidateLicense(System.String, System.String, Boolean ByRef, Boolean ByRef, Boolean ByRef, System.Nullable`1<Int32> ByRef, Boolean)
   at SourceCode.SetupManager.UI.Panels.LicensePanel.FinishPanel()
   at SourceCode.SetupManager.Main.navigateNext()
   at SourceCode.SetupManager.Main.t_Tick(System.Object, System.EventArgs)
   at System.Windows.Forms.Timer.OnTick(System.EventArgs)
   at System.Windows.Forms.Timer+TimerNativeWindow.WndProc(System.Windows.Forms.Message ByRef)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr, Int32, IntPtr, IntPtr)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG ByRef)
   at System.Windows.Forms.Application+ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr, Int32, Int32)
   at System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext)
   at System.Windows.Forms.Application+ThreadContext.RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext)
   at SourceCode.SetupManager.ExecScenarioHandler.showMainForm()
   at SourceCode.SetupManager.ExecScenarioHandler.ShowMainForm()
   at SourceCode.SetupManager.Program.Main(System.String[])



Faulting application name: SourceCode.SetupManager.exe, version: 5.1019.26028.2, time stamp: 0x6979faa8
Faulting module name: KERNELBASE.dll, version: 10.0.26100.32522, time stamp: 0x5bbcd73d
Exception code: 0xe0434352
Fault offset: 0x00000000000ca80a
Faulting process id: 0x1D48
Faulting application start time: 0x1DCC12C97E8895A
Faulting application path: C:\Program Files\K2\Installation\SourceCode.SetupManager.exe
Faulting module path: C:\Windows\System32\KERNELBASE.dll
Report Id: cbe72204-17ab-4af7-a36f-a1765833c02d
Faulting package full name: 
Faulting package-relative application ID: 

3 replies

ScottCaseIT
Nintex Partner
Forum|alt.badge.img+4
  • Nintex Partner
  • April 1, 2026

What is the security setup on your server like? I have been doing an install on WinSrv 2025 with Delina rights management, and it has proven challenging.  

 

You might verify the version of C++ runtimes you have on your server as the access violation is typically around unmanaged code and memory access, if I remember correctly, the license libraries are some legacy code circa C++. 


Forum|alt.badge.img
  • Author
  • Rookie
  • April 1, 2026

Here are the Visual C++ Redistributable versions I have installed for the Nintex K2 Automate 5.9 installation:

  • Visual C++ 2012 (x64 and x86) – version 11.0.60610
  • Visual C++ 2013 (x64 and x86) – version 12.0.21005
  • Visual C++ 2015–2022 (x64 and x86) – version 14.44.35211

Could you let me know if I am missing any older or legacy versions that K2 5.9 requires?

On the security side, the server is a Windows Server 2025 Datacenter edition running as a virtual machine. We had the SentinelOne agent installed, but we disabled it completely before attempting the installation and are still running into the same crash at the license key step. So it doesn't appear to be SentinelOne causing the issue.

Are there any other prerequisites, runtime components, or security configurations specific to Windows Server 2025 that might be causing this? Any guidance would be appreciated.


Forum|alt.badge.img+11
  • Nintex Employee
  • April 2, 2026
  1. Is this a new installation or a migration to new servers?
  2. Does using Run as Administrator changes anything?
  3. What does the installertrace.log say?  Usually, you can find it by going to %temp%, and looking for a K2 Setup Log folder, if not at the default location, go up one directory and check for K2 Setup Log folder
  4. Make sure that the license key is valid, no leading/trailing spaces