Correct .. there is no default "beep.wav" for windows .. there IS however, a default "ding.wav" in EACH of the "themes" that come with windows. You not using it for windows has absolutely nothing to do with mIRC using it. The file is still there, regardless.
Deezmon: depending on your version of windows, (XP uses Properties, Win7 uses Personalize), Right click your desktop and select either properties or personalize (dunno what Vista uses, never used it), Go into Themes, and set the default "ding" to the sound you want to hear.
