000245-0000-0000-C000-000000000046 80040154 class not registered

Question

0.00/5 (No votes)

See more:

I have a couple a VB.2010 Desktop apps that have been running successfully for years on many clients.

One of my customers got a new Windows 10 PC.

He installed Office 2010.

When our program runs it gets the the
000245-0000-0000-C000-000000000046 80040154 class not registered
error.

He then installed Office 365 but it didn't help.

Since the programs where running on his old machine without an issue for years (and on many other systems) I cannot believe it is the code.

So what exactly does Class not registered mean?
How do you registered the class?
What really causes this issue?

Thanks

What I have tried:

Explained above.
Installed Office 365

Posted 11-Jan-19 1:21am

QuickBooksDev

Add a Solution

Comments

Richard MacCutchan 11-Jan-19 7:35am

Which version of Excel did you build your application against?

F-ES Sitecore 11-Jan-19 7:42am

It means a dll the code needed isn't registered on the target PC. Go to a PC where the code works and look the class up in the registry (HKEY_CLASSES_ROOT\CLSID\{....}). Look at the sub keys at that will give you some info about the class\code\dll it is looking for. As Richard suggested it is likely a version problem.

Edit: done this on my own machine;

Assembly: Microsoft.Office.Interop.Excel, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C
RuntimeVersion: v2.0.50727

ZurdoDev 11-Jan-19 8:00am

Please post as solution.

Richard Deeming 11-Jan-19 9:05am

Could also be a 32/64-bit issue if the new PC is 64-bit and the application is compiled as "Any CPU".

QuickBooksDev 11-Jan-19 9:15am

Currently developed on W10, Office 365 2016. The programs have been around for about 10 years and have been developed and worked on many versions of Office/Excel. Have been developing on the Office 2016 for about 1 year.

Searching with RegEdit hangs the system and forces a hard reboot. Viewing an export in Notepad is not the easiest to see what is happening in the registry.

Closest I see is
[HKEY_CLASSES_ROOT\Wow6432Node\Interface\{000214F9-0000-0000-C000-000000000046}\ProxyStubClsid32]
@="{95E15D0A-66E6-93D9-C53C-76E6219D3341}"

The app must be 32bit. Has run on 64/bit excel before.

I exported the classes and cannot find
clsid\{000214F9-0000-0000-C000-000000000046}
in nodepad

Daniele Rota Nodari 22-Jan-19 11:09am

Searching in RegEdit should not be an issue, even if you input wrong search parameters: if it really hangs the system, then I'd look for something more serious than a DLL mismatch. It could be a registry corruption that prevents correct system behavior and might yield to unpredictable issues.

QuickBooksDev 22-Jan-19 11:13am

RegEdit hangs have been happening for a long time. The error with the DLL does not occur on the same system. RegEdit problems do not seem to be new if you google it.

QuickBooksDev 11-Jan-19 9:22am

My mistake (I'm going blind looking at these guids). I found
[HKEY_CLASSES_ROOT\CLSID\{00024500-0000-0000-C000-000000000046}]
@="Microsoft Excel Application"

and a bunch more.
The above comment had the wrong guid.

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)