| Microsoft DirectX 9.0 |
The Async File Source filter opens and reads local files of many different data formats and passes the data to a parser filter.
To downloading media files from the Web, use the File Source (URL) filter. To read ASF files, use the WM ASF Reader filter.
| Filter Interfaces | IBaseFilter, IFileSourceFilter |
| Input Pin Media Types | Not applicable. |
| Input Pin Interfaces | Not applicable. |
| Output Pin Media Types | MEDIATYPE_Stream. The subtype depends on the media format. (MEDIASUBTYPE_NULL if the filter doesn't recognize the format.) |
| Output Pin Interfaces | IAsyncReader, IPin |
| Filter CLSID | CLSID_AsyncReader |
| Property Page CLSID | No property page. |
| Executable | quartz.dll |
| Merit | MERIT_UNLIKELY |
| Filter Category | CLSID_LegacyAmFilterCategory |