C# Signature:

[DllImport("kernel32.dll")]
static extern bool Beep(uint dwFreq, uint dwDuration);

Notes:

Unlike MessageBeep, this function is synchronous. (It doesn't return control to its caller until the sound finishes.)

Tips & Tricks:

Please add some sample code!

Sample Code:

Please add some!

Alternative Managed API:

System.Console.Beep, coming in v2.0 (Whidbey) of the .NET Framework