IIS 6 Crash due to DLL/worker process recycle?

We are currently building a web app using the version 3.0.1 of the DynamicPDF generator, hosted on a Windows Server 2003 machine with IIS 6.

As part of our normal maintenance processes for server stability, we force a recycle of the IIS Worker Processes every night. Ever since installing the DLL on our server, we have been receiving IIS crash messages after the recycle event, which appear to be due to the PDF DLL:

Event Type:        Error
Event Source:        Application Error
Event Category:        (100)
Event ID:        1000
Date:                10/24/2007
Time:                2:09:23 AM
User:                N/A
Computer:        93382-WWW1
Description:
Faulting application w3wp.exe, version 6.0.3790.1830, faulting module mscorwks.dll, version 1.1.4322.2407, fault address 0x0004fc67.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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Event Type:        Error
Event Source:        COM+
Event Category:        Unknown
Event ID:        4786
Date:                10/24/2007
Time:                2:09:23 AM
User:                N/A
Computer:        93382-WWW1
Description:
The system has called a custom component and that component has failed and generated an exception. This indicates a problem with the custom component. Notify the developer of this component that a failure has occurred and provide them with the information below.
Component Prog ID:
Process Name: w3wp.exe
Exception: C0000005
Address: 0x791FFC67
Call Stack:
mscorwks!GetCompileInfo + 0x2476d
mscorwks!GetCompileInfo + 0x2ce41
mscorwks!GetCompileInfo + 0x2ce72
mscorwks!GetCompileInfo + 0x2cd93
mscorwks!GetCompileInfo + 0x2d114
mscorwks!GetCompileInfo + 0x2bcc9
mscorwks!GetCompileInfo + 0x2d369
mscorwks!GetCompileInfo + 0x2d344
ole32!CoQueryAuthenticationServices + 0x2afb
ole32!CoQueryAuthenticationServices + 0x36c5
ole32!UpdateDCOMSettings + 0x7ee0
RPCRT4!NdrServerInitialize + 0x462
RPCRT4!NdrStubCall2 + 0x217
RPCRT4!CStdStubBuffer_Invoke + 0x82
ole32!WdtpInterfacePointer_UserMarshal + 0x13fa
ole32!WdtpInterfacePointer_UserMarshal + 0x13ad
ole32!ProgIDFromCLSID + 0x1fd3
ole32!ProgIDFromCLSID + 0x1dd1
ole32!DcomChannelSetHResult + 0x851
ole32!WdtpInterfacePointer_UserMarshal + 0x12db
ole32!WdtpInterfacePointer_UserMarshal + 0x116c
ole32!WdtpInterfacePointer_UserMarshal + 0x15ec
ole32!DcomChannelSetHResult + 0x7ca
ole32!DcomChannelSetHResult + 0x5ee
USER32!EnableMenuItem + 0x4ccc
USER32!EnableMenuItem + 0x4d99
USER32!GetWindowLongW + 0x183
USER32!DispatchMessageW + 0xf
comsvcs!CoCreateActivity + 0x572a
comsvcs!CoCreateActivity + 0x5657
comsvcs!CoCreateActivity + 0x5ff0
comsvcs!CoCreateActivity + 0x643c
msvcrt!_endthreadex + 0xa3
kernel32!GetModuleFileNameA + 0xeb


For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

------------------------------------------------------------------

Faulting application w3wp.exe, version 6.0.3790.1830, faulting module ole32.dll, version 5.2.3790.2492, fault address 0x000428cf.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

------------------------------------------------------------------

Has anyone else experienced this, or perhaps has some ideas towards resolution?

I should add - disabling the worker process recycle is likely not going to be an option for us.

Hello,

We are working to set up the exact same environment and do some testing on our end. We will post further updates on this as soon as possible.

Thanks,
ceTe Software Support Team

Hello,

We did some testing on Windows 2003 Server. The error does occur when .NET Framework 1.1 is installed on Windows 2003 Server with SP1. The problem is not within our product because we did some testing creating a sample example without the use of our product and error did continue to show up in the event viewer.

We found the following solutions that did fix the problem:

1. Installing Windows Server 2003 SP2 if using .NET framework 1.1
2. The error does not show when using .NET Framework 1.0
3. The error does not show when using .NET Framework 2.0. The DLL files for framework 2.0 are currently not available in the download. We will be adding this to the standard installer very soon. In the meantime if you plan on using .NET Framework 2.0, please send an email to our Support Team and they can send you DLL files that will work fine against framework 2.0.

Thanks,
ceTe Software Support Team

I'm facing similar problems.  I have service pack 2 installed - but that hasnt helped.

Does the latest build of 3.01 support framework 2 and will installing .net 2 and the lastest build of 3.01 actually help?

Thanks

Paul

Hello Paul,

Yes, the latest build of the v3.0.3 works with the .NET framework v2.0 without any problem. You will have to download the latest build from our CustomerArea using your current serial number.

Thanks,
ceTe Software Support Team.

Thanks for the reply.  Do you know if this will solve my issue ( very similar to the one above?

For your info here's the debug info:

The system has called a custom component and that component has failed and generated an exception. This indicates a problem with the custom component. Notify the developer of this component that a failure has occurred and provide them with the information below.
Component Prog ID:
Process Name: w3wp.exe
Exception: C0000005
Address: 0x791FFC67
Call Stack:
mscorwks!GetCompileInfo + 0x2476d
mscorwks!GetCompileInfo + 0x2ce41
mscorwks!GetCompileInfo + 0x2ce72
mscorwks!GetCompileInfo + 0x2cd93
mscorwks!GetCompileInfo + 0x2d114
mscorwks!GetCompileInfo + 0x2bcc9
mscorwks!GetCompileInfo + 0x2d369
mscorwks!GetCompileInfo + 0x2d344
ole32!CoQueryAuthenticationServices + 0x21bf
ole32!CoQueryAuthenticationServices + 0x2dae
ole32!CoGetContextToken + 0x119ee
RPCRT4!NdrServerInitialize + 0x1fa
RPCRT4!NdrStubCall2 + 0x217
RPCRT4!CStdStubBuffer_Invoke + 0x82
ole32!StgGetIFillLockBytesOnFile + 0x13d32
ole32!StgGetIFillLockBytesOnFile + 0x13cdf
ole32!DcomChannelSetHResult + 0xaab
ole32!DcomChannelSetHResult + 0x495
ole32!CoFreeUnusedLibrariesEx + 0xb06
ole32!StgGetIFillLockBytesOnFile + 0x13bec
ole32!StgGetIFillLockBytesOnFile + 0x13a7d
ole32!StgGetIFillLockBytesOnFile + 0x12f64
ole32!CoFreeUnusedLibrariesEx + 0x9f5
ole32!CoFreeUnusedLibrariesEx + 0x9c0
USER32!LoadCursorW + 0x4cf5
USER32!LoadCursorW + 0x4e86
USER32!TranslateMessageEx + 0x10d
USER32!DispatchMessageW + 0xf
comsvcs!DllUnregisterServer + 0x270
comsvcs!DllUnregisterServer + 0x180
comsvcs!DllUnregisterServer + 0xc6c
comsvcs!DllUnregisterServer + 0xf4d
msvcrt!_endthreadex + 0xa3
kernel32!GetModuleHandleA + 0xdf


For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Thought I'd just mention that the issue is very easy to replicate:

1) I access my site and access one of the pages generating a pdf document via DynamicPDF

2) Manually recycle the application pool - and the error occurs.

If I access my site but don't gone on one of the pages with DynamicPDF and recycle there are no problems.

Hello Paul,

Yes, you can use our latest build with the .NET framework v2.0 without any problem. You can download it from our CustomerArea. You will have to register the dlls using the batch file Installv2.0.50727.bat located in the bin folder of the installation files.

Thanks,
ceTe Software Support Team.

This was very bad advice by Cete Customer support.

I followed their steps - it totally breaks Dynamic PDF - all I get now is "Cannot create object" errors!

After a dozen re-installs and re-starts it was no better.

I am now trying to uninstall .Net Framework v2 and hope this will at least get things working.

Hello,

Have you installed the latest build from our CustomerArea? The latest build of our COM v3.0.1 product is 61004. Please double check that you have this latest build. The latest build will work with .NET framework v2.0 without any problem.

Please double check that the dlls are registered in the system. You can check this by running the VbScript examples downloaded with the product download.

Thanks,
ceTe Software Support Team.

I downloaded the very latest version ( 61004 ).  I also ran the script you suggested.  In desperation I even re-started the server.  I re-installed - just in case it hadnt worked.  I ran the script again.  I re-started.

In fact I tried everything and simply won't work.  However I notice in another thread in this forum that in fact there are issues with .Net framework 2 that can cause problems with software like DynamicPDFs.  Microsoft are supposed to be working on a patch but as it's not released that doesnt help much.

In the end I uninstalled .net 2 and everything went back to working as it did before ( i.e. occassional crashes but least it mostly works )

Maybe once the patch is released by MS that would solve the issues.  In the meantime .net 2 and Dynamic PDF are best not installed together.

Hello,

The problem is not related to our product at all. Our product works fine on machines with .NET Framework 2.0. We have done successful testing and have several customers using it without any problem.

Are you using IE7 on the machine where the crash occurs? If yes, we would like you to install the patch provided by Microsoft. The patch has not been released publicly as yet. The error occurs on line where you try to create the objects. Please send an email to our support@cete.com and refer to this forum thread and they will send you the patch.

Thanks,
ceTe Software Support Team

Is this problem solved? Does the microsoft patch solve the problem?
Lg,
Tim

Hello Tim,

As mentioned in our last forum post dated Apr 29 2008 9:19 AM, the issue where the IIS crashes when the worker process is recycled is not related to our product.

The hot fix that was mentioned in our previous post addresses a different issue. If the error you are experiencing is similar to what was described here in this forum post then you might be able to resolve it by installing the Microsoft patch, in which case please email support@cete.com for the patch.

Thanks,
ceTe Software Support Team.