How to fix Class not registered or 80040154 error reviews

3.69 from 51 Reviews
Unnamed
on 15 December 2016
worked on a windows xp professional.
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Review # 51

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xitiz
on 01 September 2016
i found class not registered in attendance management software. I format and installed a new software but again same problem is detected what can I do plz help me
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Review # 50

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Ryan Middleton
on 02 September 2015
Windows 10 error message:
"The module "quartz.dll" was loaded but the call to DllRegisterServer failed with error code 0x80070005.

For more information about this problem, search online using the error code as a search term."
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Review # 49

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Aviral
on 03 May 2015
It didn't fix my problem but gave a error message as everyone else who have commented.I use windows 7 ultimate
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Review # 48

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Luna Lovegood
on 05 March 2014
This didn't work for me because I still get an error message that says: "Quartz DLL was loaded but call to DLL Register Server failed with error code 0x80070005. Now what???
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Review # 47

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racher
on 25 January 2014
didn't work on win 7
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Review # 46

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Kevin
on 08 December 2013
The opening paragraph said there were several easy fixes. Only one was given.

I did the recommended fix successfully, but that did not remedy the problem. What other commands can I run to try to fix this? Thank you.
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Review # 45

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Pcmaven1
on 15 July 2013
Class not registerd when I try to save-as in MS Word or Open Office. Your fix had no effect, but got confirmation register server succeeded.

Rebooted, my problem not solved.
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Review # 44

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kenny
on 26 June 2013
i get the class not registered error when i right click on a file trying to "open location" will this work for that instance?"

i do not get this error using media,or i haven't yet" sorry for being a luddite. i didn't want to try first messig something else up....

thanks...
kenny win 7 64it
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Review # 43

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Maurice
on 20 June 2013
I have been receiving the following message when I try to play anything with MPC-HC:

"Failed to query the needed interfaces for playback". With WMP I get the message "The specified module could not be found".

After much Googling I realized that quartz.dll is not registered on my machine. I confirmed that this is so by using the InstalledCodec program.

I tried registering it with "regsvr32 quartz.dll", but I have the error message "DllRegisterServer in quartz.dll failed. Return code was 0x8007007e".

I suppose the next step is to delete the existing quartz.dll in System32 and copy another version downloaded from the internet.

That means defeating System File Protection.
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Review # 42

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Vinod
on 01 June 2013
Not working :(
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Review # 41

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Nicki
on 07 May 2013
Nice try but I then got the message that quartz.dll was loaded but the call to DllRegisterServer failed with error 0x80070005 :(
Off to try googling that now...
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Review # 40

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marlin
on 24 March 2013
it worked perfectly =D
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Review # 39

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regina
on 27 February 2013
I tried the 'quartz.dll' and it worked. I also tried the 'ieframe.dll' and it did not work. Is there a reason?
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Review # 38

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Jeri
on 14 November 2012
Tried to play Pogo & got error 'Class not registered'. During my trying, message says download Explorer 8 because doing away with 7.

I did E8, wouldn't work so deleted it. THEN I got the Class not registered message. Now nothing will come up.
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Review # 37

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