Resolves a vulnerability in Windows that could allow remote code execution if a user opens a specially crafted media file. An attacker who successfully exploited this vulnerability could gain the same user rights as the local user.

Codecs allow you to play different formats of audio and video files. Media Player supports a wide variety of codecs. Most are included out of the box; some additional codecs can be installed from the Microsoft Store. Windows includes codecs that allow Media Player to play the following formats out of the box:

Windows Media Player supports the following file formats: Note MPEG 2 requires third-party software or hardware decoders. Note DVD playback requires third-party software or hardware decoders and is supported only in Windows XP. Note Intel Video File support requires the Intel Video 5.x codec.

Resolves a vulnerability in Windows that could allow remote code execution if a user opens a specially crafted media file. An attacker who successfully exploited this vulnerability could gain the same user rights as the local user.

Check the file compatibility: Ensure that the media file you are trying to play is compatible with Windows Media Player. Note: Commonly supported formats include MP3, WAV, WMA, AVI, and WMV. Check for outdated or corrupted codecs: You may have a missing or outdated codec. For more information, check file format and codec requirements.

Poor-quality playback can be caused by dramatic changes to the default settings for SRS WOW Effects or for Equalizer. If you experience poor-quality playback, turn off both of these features. To turn off the audio effects, follow these steps: Click Now Playing. On the View menu, point to Enhancements, and then click Graphic Equalizer.

Bei Verwendung dieses Standards erhalten Sie eine Bildqualität, die nur geringfügig schlechter ist als die Qualität herkömmlicher VCR-Videos. Dateien mit der Erweiterung .m1v sind normalerweise MPEG-1-Elementarstreams, die nur Videoinformationen enthalten.

Fix your media file that won't play in PowerPoint. For a complete list of supported video formats, see Video and audio file formats supported in PowerPoint. Video: We recommend that you use .mp4 files encoded with H.264 video (also known as MPEG-4 AVC) and AAC audio.

MS13-057 : Description de la mise à jour de sécurité pour wmv9vcm.dll (codec) sous Windows XP, Windows Server 2003, Windows Vista et Windows Server 2008 datée du 09.07.13. Microsoft a publié le bulletin de sécurité MS13-057. Pour consulter la totalité du bulletin de sécurité, reportez-vous au site Web de Microsoft à l'une des adresses suivantes :

MS13-057: Mô tả các bản Cập Nhật bảo mật cho wmv9vcm.dll (codec) trên Windows XP, Windows Server 2003, Windows Vista và Windows Server 2008: ngày 9 tháng 8 năm 2013. Microsoft đã phát hành bản tin bảo mật MS13-057. Để xem bản tin bảo mật đầy đủ, hãy truy cập một trong các trang web sau của Microsoft: