Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

DCOM Component failure "Class not registered"

Posted on 2008-10-16
2
Medium Priority
?
1,302 Views
Last Modified: 2013-11-29
How do I ensure a COM component is registered for use? Are there any checks we can make to ensure it? This error is coming from a vendor product which uses DCOM to communicate to a backend system. We have other servers which are working fine, but we have two servers which are not. Checking the configurations on dcomcnfg.exe has resulted in the same settings for both the working and non-working systems.  If I use a working system and connect to the backend of the non-working system - it also works so it points directly to the non-working servers.  Any help would be great!
PS: The two servers in question have been recently rebuilt using standard scripts.
I would like to request since I haven't received any responses to this query if anyone knows of any tools for DCOM based sniffing or a known network tool and how to identify the communications for DCOM within it.  Wish I could raise the points but it is at the max.
Thanks, In Advance,
0
Comment
Question by:spinewr
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 4

Accepted Solution

by:
barnesd1 earned 1500 total points
ID: 22865663
I take it these components are Activex DLLs.  They need to be registered with regsvr32 c:\windows\system32\mydll.dll.  They also need to be setup in component services.  An example of doing this is at http://msdn.microsoft.com/en-us/library/ms878113(EXCHG.65).aspx.  You should also check what user this component needs to run under - compare this with the working servers.  How this helps.
0
 

Author Comment

by:spinewr
ID: 22902406
Thanks Barnesd1, you are the first to at least review the question.  I actually have Microsoft working on the problem wth us now.  We have tested SQL connectivity using a test UDL flle, ODBC connectivity using SQL and done a trace in ODBC which is not giving us much information. I will accept your answer because it is now a vendor problem. The UDL file and ODBC connecitivity tests are working and the connect string from the application is throwing an SSL error (which the company swears they have not done any SSL implementation.  We are next going with a NetMon trace to see if that gives us more information.
0

Featured Post

Plug and play, no additional software required!

The ATEN UE3310 USB3.1 Gen1 Extender Cable allows users to extend the distance between the computer and USB devices up to 10 m (33 ft). The UE3310 is a high-quality, cost-effective solution for professional environments such as hospitals, factories and business facilities.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An introduction to the wonderful sport of Scam Baiting.  Learn how to help fight scammers by beating them at their own game. This great pass time helps the world, while providing an endless source of entertainment. Enjoy!
In this post we will be converting StringData saved within a text file into a hash table. This can be further used in a PowerShell script for replacing settings that are dynamic in nature from environment to environment.
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…

721 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question