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# Comparing Features of Windows Sound System 1.0, 1.0a, and 2.0

Article ID: 121259

Article Last Modified on 11/14/2003

APPLIES TO

- Microsoft Windows Sound System 1.0
- Microsoft Windows Sound System 1.0a
- Microsoft Windows Sound System 2.0

This article was previously published under Q121259

## SUMMARY

This article lists some of the features in Microsoft Windows Sound System versions 1.0, 1.0a, and 2.0.

## MORE INFORMATION

### Version 1.0

- Supported exclusively under Microsoft Windows versions 3.1 and later
- Supports Windows Sound System sound card only
- ProofReader supports Microsoft Excel versions 3.0 and later and Lotus versions 1.0, 1.0a, and 1.10.01

### Version 1.0a

- Supports the Windows Sound System sound card only
- Introduced single-mode direct memory access (DMA)
- Corrected problems with the Symphony chip set
- Compatible with Coda's Finale software version 2.2
- Supports games in MS-DOS with a special system disk
- Supports SoundBlaster-compatible games through the Configuration icon
- Games designed to support the Ad Lib card should run
- Separate icons for volume control and record control
- Invalid IRQs can incorrectly be selected.
- CTRL+ALT+PGUP- and CTRL+ALT+PGDN-controlled volume in MS-DOS-based games
- Replaces standard Windows 3.1 Audio Compression Manager
- ProofReader supports Lotus for Windows versions 1.0, 1.0a, and 1.1.01

### Version 2.0

- Supports OEM sound cards (Media Vision, Creative Labs, ESS)
- Controls the sound volume in some MS-DOS-based games
- Supports MS-DOS-based games in full-screen mode. The Windows Sound System drivers are located in the Drivers area of Control Panel.
- WSSXLAT requires EMM386.EXE version 4.47 or later. No other memory managers are supported.
- ProofReader supports Lotus for Windows versions 1.0, 1.0a, 1.1.01, and 4.0

Additional query words: 1.00 2.00 3.1 3.5 2.00a

Keywords: KB121259