[MSDN Library June 1998] Sonar Feature Does Not Appear in MS-DOS Prompt Session (57.0238095238095%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Microsoft Natural Keyboard

[MSDN Library June 1998] Sonar Feature Leaves Rings on the Screen (42.6719576719577%)

MSDN Library Visual Studio 6.0 > Knowledge Base > Microsoft Natural Keyboard