SPKRDD.SYS

The Speaker audio device driver provide support for playing digital audio waveform files on the standard PC speaker by using the MMPM/2 audio system. The speaker driver provides support for PCM waveform files that are (8-bit/16-bit, stereo/mono, 11Khz-44khz). DEVICE=\MMOS2\SPKRDD.SYS BETTER DON'T USE IT, if you need (or want) sound on a regular base better buy one of those cheap sound cards.