Class not registered (Exception from HRESULT: 0x80040154 ) on an app compiled in x86

So I have a document manager application that uses an Adobe Reader plug-in to view PDF files. I've been using the same dll for a few years and all has worked well until some of my clients started using Reader 11.
It's likely an environmental issue since it's only happening to certain people(quite a few however) and neither I nor QA can reproduce it. The error is above.
If the clients revert to Reader 10, all is well again. Most of them are on Win 7 x64.
The application is compiled as x86 and the "Display PDF in browser" option is checked.
Any help?
Thank you

This is the block where they check for an installed Adobe reader. If reader 11 is installed, the exception is thrown. If it's reader 10 it works.
try
                    AxAcroPDFLib.AxAcroPDF acrobat = new AxAcroPDFLib.AxAcroPDF();
                    IntPtr handle = acrobat.Handle;
                    acrobat.Dispose();
                    acrobat = null;
                    _isAcrobatPdfAvailable = true;
                catch (Exception ex)
                    _isAcrobatPdfAvailable = false;

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Retrieving the COM class factory for component with CLSID {479A1AAC-C148-40BB-9868-A9773DA66AF9} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

Hi,
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Hi,
I am not able to find sharepoint word in your post so can you please confirm that your question is related to sharepoint?
> Class not registered
For you issue, this error usually comes if you don't have DLL in proper place so add SWFToImage.dll in GAC and then add this assembly reference in your project from GAC.
Hemendra: "Yesterday is just a memory,Tomorrow we may never see"
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Hi,
Here I want to known one thing clearly, that is I was developed one application in C# with Acrobat SDK.
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System 3
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A simple google can get:
Common problems such as Windows Error Code 0x80040154 can be resolved with without too much difficulty. In this article we will go through solving the problem and how to prevent it in the future.
What happens
If you are registering an ATL server, you may see this error code. In the case of DLLs, regsvr32.exe will generate this error. In the case of EXEs, calling _Module::RegisterServer (CComModule::RegisterServer) in _tWinMain() will generate this error.
For detail: http://www.error.info/windows/registry-0x80040154.html
Cheers,
andy

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Information at http://www.tangosol.com/
"Levent Sezer" <[email protected]> wrote in message
news:[email protected]..
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Retrieving the COM class factory for component with CLSID {254B4003-2AA7-4C82-BB2E-18BA7F22DCD2} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
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Please mark this post accordingly if it answers your query or is helpful.

"Unable to load DLL '/system/usr/lib/libidlprinter.so': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"}

I am using intermec printer (directly loading to the printer no system used for printing) for this program and if i run this,i'm getting this below error
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any help on this .........
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line1Text.FontName = "CG Times Bold";
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drawing.PartialRendering = true;
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catch (Exception ex)
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// Clean up
// usbHost.Dispose();
return;

Hiya,
The error is because the app tried to import that driver but it was not found. So, you will need
to recheck your project setup, provide locations for imports, etc. I am not familar with Intermec Printer.
The code snippet does not show any information about the DLL import, check there too.
Hope this helps. :)

PDF properties (meta tags) can't be changed (error 0x80040154 - class not registered)

Hello,
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=====================
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=====================
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Hi,
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- Ludek
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I have a 8 node cluster with Hyper-V, which will be 10 nodes when it's finally done.
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Before I did the ping test from a functioning node I pinged my DC and another node from the problem node just fine.
No waiting at all.
The cluster has three networks. Management (host only), Live Migration and iSCSI (also a VMSwitch for certain VM's).
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Hi,
Are you using the HP servers? It seems is the HP Nic team service was causing the issue, please try to
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The related third party information:
Advisory: (Revision) HP ProLiant Servers - Systems Running Microsoft Windows Server 2012 or 2012 R2 May Experience a Memory Leak Up To 5 Mb/ Hour for Some NIC Teaming Configurations
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The specified module could not be found. (Exception from HRESULT: 0x8007007E)

Hi,
We have an exisiting .NET MVC project which uses crystal reports versions 2008 (dlls of version 12.0.). No we have Crystal Reports 2011 for.NET SDK is installed and I've updated all the crystal related dlls (Enterprise.Framework.dll, CrystalDecisions.Chared, CrystalDecisions.Web ...) to newer version which is 14.0. After this upgrade, when I run application, I am getting the following error:
The specified module could not be found. (Exception from HRESULT: 0x8007007E)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.IO.FileNotFoundException: The specified module could not be found. (Exception from HRESULT: 0x8007007E)
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[FileNotFoundException: The specified module could not be found. (Exception from HRESULT: 0x8007007E)]
   System.Reflection.Assembly._nGetModules(Boolean loadIfNotFound, Boolean getResourceModules) +0
   System.Reflection.Assembly.nGetModules(Boolean loadIfNotFound, Boolean getResourceModules) +40
   System.Reflection.Assembly.GetTypes() +28
   System.Web.Mvc.TypeCacheUtil.FilterTypesInAssemblies(IBuildManager buildManager, Predicate`1 predicate) +161
   System.Web.Mvc.TypeCacheUtil.GetFilteredTypesFromAssemblies(String cacheName, Predicate`1 predicate, IBuildManager buildManager) +63
   System.Web.Mvc.ControllerTypeCache.EnsureInitialized(IBuildManager buildManager) +115
   System.Web.Mvc.DefaultControllerFactory.GetControllerTypeWithinNamespaces(RouteBase route, String controllerName, HashSet`1 namespaces) +58
   System.Web.Mvc.DefaultControllerFactory.GetControllerType(RequestContext requestContext, String controllerName) +634
   System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +58
   System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +118
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +46
   System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +63
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +13
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8770194
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
We have another ASP.Net project, which is working fine after I update older crystal dlls to newer ones. This project is working fine.
Thanks in advance

This error I am getting, after I update the "CrystalDesicions.Web.dll" from version 12 to 14.0. Any I dea on this?
After, I verified with fusin log and ProcessMonitor, they are reporting on this:
path to BusinessObjects.Licensing.KeyCode.Decoder.dll is not found. Does this dll is used by CrystalDecisions.Web.dll?
and I don't have any mixed reference.
Any help?

Class not registered (Exception from HRESULT: 0x80040154 ) on an app compiled in x86

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