[MSDN Library April 2000] MessageBeep (50.1532567049808%)
MSDN Library - April 2000 > Platform SDK > Base Services > Debugging and Error Handling > Error Handling > Error Handling Reference > Error Handling Functions
[MSDN Library June 1998] MessageBeep (49.5402298850575%)
MSDN Library Visual Studio 6.0 > Platform SDK > Windows Base Services > Debugging and Error Handling > Errors > Error Reference > Error Functions
[MSDN Library April 2000] MessageBeep (42.7011494252874%)
MSDN Library - April 2000 > Windows CE Documentation > Application Development > API Reference > User Interface > Functions