Thank you, now its working fine!

I created a simple Winforms application for testing, but result is same. With AMD CPU works fine, with Intel CPU its crashing. Thank you!

Hello,

I develop a Windows Service hosted WCF service. Its working fine in debug mode from Visual studio, working fine on a Hyper-V virtual machine with AM64 system, but not working in Production environment with 64 bit Intel CPU. The debugging options are limited in production evironment so I can send only eventlog error messages based on the cases I tested. I built the app in x64, x86 and AnyCPU editions and I copy the App_Web_OpcLabs.EasyOpcClassicRaw.amd64.dll and App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll into the main app folder in every combination, but neither works in this environment. Here are the cases:

Service built as 64 bit:
===========================
In production environment with Intel 64 bit CPU:

Service not starting, with/without App_Web_OpcLabs.EasyOpcClassicRaw.amd64.dll and App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll placed in main app folder:

Service cannot be started. System.BadImageFormatException: Could not load file or assembly 'WCFService, Version=2.0.1.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.
File name: 'WCFService, Version=2.0.1.0, Culture=neutral, PublicKeyToken=null'
at .WINSERVICE.WindowsService1.OnStart(String[] args)
at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state)

=== Pre-bind state information ===
LOG: DisplayName = WCFService, Version=2.0.1.0, Culture=neutral, PublicKeyToken=null
(Fully-specified)
LOG: Appbase = file:///C:/Program Files (x86)/KONsys/ WCF Service/
LOG: Initial PrivatePath = NULL
Calling assembly : WindowsService, Version=2.0.1.0, Culture=neutral, PublicKeyToken=null.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Program Files (x86)\KONsys\ WCF Service\WindowsService.exe.Config
LOG: Using host configuration file:
LO...


Service built as 32 bit (x86)
===========================
In production environment with Intel 64 bit CPU:

CASE [1]:

---

App_Web_OpcLabs.EasyOpcClassicRaw.amd64.dll and App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll placed in main app folder:
Service stopping and 404 error.

Faulting application name: WindowsService.exe, version: 2.0.1.0, time stamp: 0x66fe5e8a
Faulting module name: ntdll.dll, version: 10.0.20348.2694, time stamp: 0xd7baa515
Exception code: 0xc0000374
Fault offset: 0x000e9459
Faulting process id: 0x40c
Faulting application start time: 0x01db15764989e064
Faulting application path: C:\Program Files (x86)\KONsys\ WCF Service\WindowsService.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 9e675e0d-6147-4156-b660-ce12c03fc9cf
Faulting package full name:
Faulting package-relative application ID:

CASE [2]:

---

App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll placed in main app folder:
Service stopping and "Error: Failure when receiving data from the peer" error.

Faulting application name: WindowsService.exe, version: 2.0.1.0, time stamp: 0x66fe5e8a
Faulting module name: ntdll.dll, version: 10.0.20348.2694, time stamp: 0xd7baa515
Exception code: 0xc0000374
Fault offset: 0x000e9459
Faulting process id: 0x1e2c
Faulting application start time: 0x01db157628be724a
Faulting application path: C:\Program Files (x86)\KONsys\ WCF Service\WindowsService.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 9bf4b7a4-ecd6-4d3a-8382-559ea91209c6
Faulting package full name:
Faulting package-relative application ID:

CASE [3]:

---

App_Web_OpcLabs.EasyOpcClassicRaw.amd64.dll placed in main app folder:
Service working but when try write OPC tag it throws exception: "Object reference not set to an instance of an object.
at WCFSERVICE.SINGLETONS.OpcLoggingSingleton.WriteItemsToOPC(Dictionary`2 tagsData)
at WCFSERVICE.Service1.ProcessPlainTextRequest(Stream Request)"


Service built as AnyCPU bit
===========================
In production environment with Intel 64 bit CPU:

CASE [1]:

---

App_Web_OpcLabs.EasyOpcClassicRaw.amd64.dll and App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll placed in main app folder:
Service stopping and 404 error.

Faulting application name: WindowsService.exe, version: 2.0.1.0, time stamp: 0x66fe6433
Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x06976040
Faulting process id: 0x20c0
Faulting application start time: 0x01db1577269cd2bf
Faulting application path: C:\Program Files (x86)\KONsys\ WCF Service\WindowsService.exe
Faulting module path: unknown
Report Id: 62d12a29-8648-4d68-911e-dbd80fc24a4c
Faulting package full name:
Faulting package-relative application ID:

CASE [2]:

---

App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll placed in main app folder:
Service stopping and "Error: Failure when receiving data from the peer" error.

Faulting application name: WindowsService.exe, version: 2.0.1.0, time stamp: 0x66fe6433
Faulting module name: ntdll.dll, version: 10.0.20348.2694, time stamp: 0xd7baa515
Exception code: 0xc0000374
Fault offset: 0x000e9459
Faulting process id: 0x1dd4
Faulting application start time: 0x01db15776448b7d3
Faulting application path: C:\Program Files (x86)\KONsys\ WCF Service\WindowsService.exe
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 5611aa70-a289-412b-9aea-5f914673660d
Faulting package full name:
Faulting package-relative application ID:

CASE [3]:

---

App_Web_OpcLabs.EasyOpcClassicRaw.amd64.dll placed in main app folder:
Service working but when try write OPC tag it throws exception: "Object reference not set to an instance of an object.
at .WCFSERVICE.SINGLETONS.OpcLoggingSingleton.WriteItemsToOPC(Dictionary`2 tagsData)
at .WCFSERVICE.Service1.ProcessPlainTextRequest(Stream Request)



The AnyCPU (CASE [1]) works fine with AMD 64 bit CPU. Why not working with Intel 64 bit CPU?

Thank you for help!