[highlight=vb.net]
Dim exeArray As String() = FileIO.FileSystem.GetFiles(Application.StartupPath , 2, "*.exe").ToArray
ComboBox1.Items.AddRange(exeArray)
ListBox1.Items.AddRange(exeArray)
[/highlight]
Yeah, you can call the AddRange method on either of the controls and it will parse an array and add each individual item.