COM object fail, class not registered error, WMEncBasicEdit

StackOverflow https://stackoverflow.com/questions/8534498

  •  18-03-2021
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Domanda

I have to cut WMA file from start position to end position. I'm trying to use WMEncoder. I've installed Windows Media Encoder SDK 9 and added a reference to WMEncoder lib for my project. But when I'm trying to create a new instance of WMEncBasicEdit class Visual Studio throws exception 80040154. Where is my fault?

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Soluzione

Error 80040154 indicates that the COM class is not registered. I'm not sure why it wouldn't be registered; this is usually handled by the installer. On my machine, from looking in the registry I can see that class is implemented in the following file:

C:\Windows\System32\wmpencen.dll

Can you see if you have that file installed? If it is, you can try registering it:

regsvr32 C:\Windows\System32\wmpencen.dll

Or rerun the SDK installer (assuming it installs this file) and check for errors.

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