FlacUserItem does seem to work? It always returns an empty string no matter which key is passed to the function.

How did you call this function ?

I tested it with this code in VB:
[CODE]
AudioGenie.AUDIOAnalyzeFile datei$
AudioGenie.FLACUserItem("mykey") = "1234"
Text1.Text = AudioGenie1.FLACUserItem("mykey") ' give me 1234
[/CODE]

Give us some code please....