msdmo.dll Error Fix

What is a DLL?

DLL (Dynamic Link Library) files contain computer code and resources that can be used by multiple programs at the same time. This uses less system memory and helps your computer system run more efficiently. DLL files give program developers the ability to reuse code to add features to several programs without the need to write new code for each program.

There are many programs that require DLL files to function properly so when one of them is damaged or missing it will cause program crashes and poor system performance.

What is msdmo.dll?

The DirectX Media Object (DMO) is a COM-based multimedia and data streaming component similar to DirectShow filter that takes input data and use it to produce output data. An API for DMO is simple and easy to create, test, and use. Thus Microsoft encourages developers to use it for encoding and decoding, audio capture, as well as audio and video processing effects.

To encode media using DirectShow developers use the msdmo.dll module to encode only to ASF/WMV container formats and therefore proprietary Microsoft codecs. Only Microsoft tools use the msdmo.dll file. The Windows Media SDK and ASF framework supports this runtime library. These codecs which are bundled with Windows Media Player and Encoder are not DirectShow filters but DMOs. It can be used in applications based on DirectShow through a DirectShow filter called DMO Wrapper filter. The application does not directly call the msdmo.dll file application. Though DMO Wrapper filters they are usable in DirectShow.

Applications based on DirectSound can also use the audio effects of the msdmo.dll module. And again the higher-level DirectSound API shields the application from the low-level API of this module. The msdmo.dll file can be used directly by applications such as DMO for video effects and audio capture effects.

The msdmo.dll file offers smaller and simpler filter because it supports less functionality than DirectShow. It is more flexible because it does not require a filter graph. It can be used with DirectShow if you need the services it provides such as synchronization, intelligent connection, automatic handling of data flow, and thread management. However if you do not need these services you can access the msdmo.dll file directly. For these reasons the msdmo.dll module application is recommended as the solution for writing encoders, decoders, and audio effects.

The inputs and outputs are called streams. Every DMO file has at least one stream but they are not objects. They are simply referenced on the msdmo.dll file by index number and are fixed at design time.

Recommended fix if you are experiencing msdmo.dll error messages:

DLL files are important parts of your operating system and many programs require them to function. When these files become damaged or are missing it causes poor system performance and system crashes. To fix these problems the user must replace the damaged file with a valid working version. If a working version cannot be found the user may perform a reinstallation of their operating system.

Msdmo.dll is created by:

Microsoft Corporation

Known file path:

C:\Windows\System32\msdmo.dll

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