Retrieving the COM class factory for component with CLSID {5D34E962-9F95-4D92-917F-F9B1A4F2BC6E} failed due to the following error: 80040154.

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Hello everyone,I am making application which uses webcam as barcode scanner.Every thing works fine,but when i run that app in win7 laptop,it throws the error
Retrieving the COM class factory for component with CLSID {5D34E962-9F95-4D92-917F-F9B1A4F2BC6E} failed due to the following error: 80040154. I have applied all the changes suggested through so many forums by developers but i am not able to correct that yet.i have added reference to DLLs, also registered them with regsvr32.exe.still facing the same issue,any helpful Suggestions please?

Posted 4-Dec-12 16:55pm

Thanks7872

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Programm3r · Answer 1 · 2012-12-04T18:58:00

Solution 1

Hi,

This error is most likely caused by trying to do 32-bit automations on a 64-bit operating system. In Visual Studio - project properties - in the Build tab - platform target = X86 or Any CPU

Kind regards,

Posted 4-Dec-12 18:58pm

Programm3r

Comments

Thanks7872 5-Dec-12 1:07am

thanks for your reply,but i have done that also nd m getting no way to get out of the error.

Programm3r 5-Dec-12 1:17am

Well, what about all of the assemblies called by the application and their bit version? Have you tried running this on a different Win 7 PC - just to check the result?

Thanks7872 5-Dec-12 1:13am

i have applied following things.1)added wialib.DLL2)added process manager as well as list and wiaaut dlls.3)changed target platform (x86,any CPU)4)changed permissions from COM config to allow .net user access.

Programm3r 5-Dec-12 1:16am

What bit version of Windows are you running on the Win 7 laptop?

Thanks7872 5-Dec-12 1:16am

32bit.......strange but true..!!!!!!!!!!

Programm3r 5-Dec-12 1:19am

And the application and all of it's assemblies are complied in 32 bit ?

Thanks7872 5-Dec-12 1:22am

ya ofcourse...m not Exactly able to figure out the issue,but i think something is going wrong with assemblies itself....and most probably theres some compatibility issues with win 7 cz if prob is with application than it should not work with xp...m i right?it would me major improvement over .NET framework if we solve this cz through surfing the web,i come to know this is one of the major issue which is still unsolved...

Thanks7872 5-Dec-12 3:51am

all of those Assemblies,i reference are COM Interop Assembly. how to find out what it uses and then install the appropriate COM component?

Programm3r 5-Dec-12 4:21am

Is your application making use of any MS Office components / assemblies?

Programm3r 5-Dec-12 4:25am

One more thing ... you said that it runs fine on one PC, but not the Win 7 PC. What is different between those two PC's?

Thanks7872 5-Dec-12 4:23am

no..but how to find which component needs to be installed in this case?

Programm3r 5-Dec-12 4:27am

Have to looked at this post: http://stackoverflow.com/questions/7197506/how-to-repair-comexception-error-80040154

Seems like it shows how to identify the missing assembly

Thanks7872 5-Dec-12 4:29am

difference is only the os.other diff we can ignore,but error code 80040154 that m getting is for "class not registered",when i execute regsvr32 <dllname>,dll not getting registered,i read somewhere that by installing appropriet com we can get out of this,cn u help me out?

Programm3r 5-Dec-12 4:39am

Really sorry mate! COM is not really my expertise o_O ... Maybe some of the other members can help you out?

Lastly, have a look at the following (if you haven't already):

http://stackoverflow.com/questions/1496214/how-to-solve-com-exception-class-not-registered-exception-from-hresult-0x80040
http://answers.microsoft.com/en-us/windows/forum/windows_7-performance/how-to-fix-error-message-class-not-registered-in/1a2e8a40-6dec-42e1-bb85-70a719e9fbbb?msgId=9fcaeace-bd04-4aef-9a96-aae1e69cd1e6

Good luck!

Thanks7872 5-Dec-12 4:43am

ok...m running sfc now...i think the problem is about to resolve now...thanks for your great support....thanks alot....

Programm3r 5-Dec-12 4:46am

No problem - good luck!