Hi,
Maybe what they meant was, were you familiar with Windows API programming in VB.
Windows API stands for Windows Advanced Programming Interface. It's a huge collection of functions provided by Windows and ready to use from any language.
For example "MessageBox" API, you can just declare and call it from VB.
Const MB_OK = &H0
Private Declare Function MessageBox Lib "user32" _
Alias "MessageBoxA" _
(ByVal hwnd As Long, ByVal lpText As String, _
ByVal lpCaption As String, ByVal wType As Long) As Long
Private Sub Form_Load()
'Show a messagebox
MessageBox Me.hwnd, "Win32API MessageBox", App.Title, MB_OK
End Sub
I am sorry if there is a mistake in code, cos I'm no good in VB

I'm sure someone can give you more info or sample code
Regards
-- AirCon --