Question

DCOM error 80080005 in CoCreateInstanceEx

Asked by: swsbuyer

I am using a DCOM client to connect to the DCOM server on another machine. Both are running Windows XP. I am using the same user user account on both the machines. I have disabled security on both sides.

If both the client & server are on the same machine, I am able to make the connection successfully.

When the server on on another machine, I get error 80080005.

Any ideas why this is happening.

Thanks.

Server code snippet:
 
	// Init COM 
	CoInitializeEx(NULL, COINIT_MULTITHREADED);
 
        // Switch off DCOM security for this COM object
        CoInitializeSecurity(
            NULL,   // Access permissions
            -1,     // Sount of authentication service entries 
            NULL,   // Auth service entry array 
            NULL,   // Reserved
            RPC_C_AUTHN_LEVEL_NONE,   // Default auth level 
            RPC_C_IMP_LEVEL_IDENTIFY, // Default impersonation level
            NULL,   // List of auth services
            0,      // Additional capabilities
            NULL    // Reserved
            );
 
        // register class
	DWORD dwRegister;
 
	IClassFactory *pIFactory = new LogFactory(logConfigPath);
	CoRegisterClassObject(CLSID_LogPublisher, pIFactory,
              CLSCTX_LOCAL_SERVER, 
              REGCLS_SUSPENDED|REGCLS_MULTIPLEUSE, &dwRegister);
 
 
Client code snippet:
 
    // Initial COM
    CoInitializeEx(NULL, COINIT_MULTITHREADED);	
 
    // Switch off DCOM security for this COM object
    CoInitializeSecurity(
        NULL,   // Access permissions
        -1,     // Sount of authentication service entries 
        NULL,   // Auth service entry array 
        NULL,   // Reserved
        RPC_C_AUTHN_LEVEL_NONE,   // Default auth level 
        RPC_C_IMP_LEVEL_IDENTIFY, // Default impersonation level
        NULL,   // List of auth services
        0,      // Additional capabilities
        NULL    // Reserved
        );
 
    COSERVERINFO si; 
    ZeroMemory(&si, sizeof(si));
    si.pwszName = wcsHost;
 
    MULTI_QI rgmqi[1];
    ZeroMemory(rgmqi, sizeof(rgmqi));
    rgmqi[0].pIID = &IID_ILogPublisher;
 
    HRESULT hr = CoCreateInstanceEx(
		CLSID_LogPublisher, NULL, 
                CLSCTX_REMOTE_SERVER, &si, 1, rgmqi);

                                  
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
27:
28:
29:
30:
31:
32:
33:
34:
35:
36:
37:
38:
39:
40:
41:
42:
43:
44:
45:
46:
47:
48:
49:
50:
51:
52:
53:
54:
55:
56:

Select allOpen in new window

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2008-04-10 at 12:10:51ID23312987
Tags

C++

Topics

DCOM

,

C++ Programming Language

Participating Experts
3
Points
350
Comments
7

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. DCOM security
    I've written a DCOM server ATL and an MFC Client app. After recently changing my NT workstation from connecting to a PDC to using a workgroup, my client no longer connects to the server. CoCreateInstanceEx returns a 0x80070005 HRESULT which means "Access Denied". I'...
  2. DCOM issues?
    Help me please!!! I'm going insane!! I've had a simliar problem (which I'm about to explain) in the past which seemed to just start happening for no apparent reason - but this time it's even worse! I'm running win2k with service pack 2. Boot up, login get to desktop - fine...
  3. Can't stop these DCOM errors!
    I've been getting constant DCOM errors on my server pertaining to various services/applications. They started right after I installed BMC Patrol. Now, I launched the DCOM Configuration Utility, and disabled the DCOM service from there... unfortunately, I'm still getting th...
  4. DCOM error
    I stpped a lto of services today that were recommended to be stopped. I am not sure this is the problem, but in the event viewer I am getting this DCOM error, that says, Event Type: Error Event Source: DCOM Event Category: None Event ID: 10005 Date: 11/3/2005 Time: 1:13:10 ...
  5. DCOM error?
    Getting this error on our domain controller from DCOM? The user account it refers to is the sophos update user account but i can't find out why the error message is being displayed or how to get rid of it... thinking it might be a machine with sophos installed somewhere with ...
  6. DCOM ERRORS
    Event Type: Error Event Source: DCOM Event Category: None Event ID: 10009 Date: 7/30/2006 Time: 12:15:01 AM User: username Computer: computer Description: DCOM was unable to communicate with the computer annps01 using any of the configured protocols. For more information,...

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: jkrPosted on 2008-04-10 at 13:22:47ID: 21328978

Have you tried the following?

        CoRegisterClassObject(CLSID_LogPublisher, pIFactory,
              CLSCTX_ALL, // <---
              REGCLS_SUSPENDED|REGCLS_MULTIPLEUSE, &dwRegister);
                                              
1:
2:
3:

Select allOpen in new window

 

by: swsbuyerPosted on 2008-04-10 at 13:49:13ID: 21329237

I will try this then let you know.

Thanks.

 

by: swsbuyerPosted on 2008-04-11 at 09:36:52ID: 21335784

Sorry. It did not make any difference. There has to be something else.

I also checked all the event logs. I can see the security audits of the connection with the user id. This audit is successful. So, the remote connection comes to the machine. Maybe it is not connecting to the COM server. Dont know why...

 

by: romanmPosted on 2008-04-15 at 16:41:25ID: 21363709

Could be a server side error, cousing COM to throw an exception?
80080005 is the usual result when that happens.

Did the server launch, or was it already launched when you attempt to instantiate?

 

by: swsbuyerPosted on 2008-04-15 at 18:59:15ID: 21364198

The server was already launched. If I stop the server, it does not launch automatically.

 

by: felixbeanPosted on 2008-04-28 at 07:26:56ID: 21454288

I don't know if this will help at all, but it might give you a few ideas to try:
http://blogs.msdn.com/adioltean/archive/2005/06/24/432519.aspx

Particularly the first comment:
I had a similar problem with a poorly designed COM server that, in a few cases, deadlocked (waiting for a mutext to be signaled) just before calling CoRegisterClassObject.
Another possible cause of this error is a debugger that breaks into the COM server EXE process and will not let the process call CoRegister... in a timely manner.
The third case when I saw this error was something about a COM server registered by the Installshield installer "only for this user" (Administrator), but the launching user was another account.

 

by: swsbuyerPosted on 2008-07-21 at 14:38:13ID: 22054549

I got sick of DCOM and finally decided to bite the bullet and convert the code to .net remoting.

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...