.AX File Extension
DirectShow Filter
| Developer | Microsoft |
| Popularity |
3.7 | 72 Votes |
| Category | System Files |
| Format | Binary |
What is an AX file?
An AX file is a DirectShow filter. Microsoft Windows Media Player and other video players use AX files to process video data streams. For example, Windows Media Player uses AX files when recording TV shows.
Microsoft DirectShow is a media-streaming architecture for Windows. Primarily, DirectShow is used by Windows Media Player, to record streaming video and audio.
AX files are part of the DirectShow architecture. DirectShow uses these files for a variety of purposes, including decoding and encoding media, parsing files, audio and video de-multiplexing, and video rendering. Windows includes several AX files, with the following names:
- Msnp.ax
- Mpeg2data.ax
- Msdvbnp.ax
- Psisrndr.ax
How to open an AX file
AX files are not meant to be opened. Microsoft Windows Media Player (Windows) and other video players use AX files as needed.