Private Sub Form_Load()
Dim rndchr As String
Dim num As Integer
Dim i As Integer
rndchr = ""
num = Int(20 * Rnd + 1)
Randomize
For j = 1 To num
i = Int(3 * Rnd + 1)
Select Case i
Case 1
chr1 = Int(26 * Rnd + 65)
Case 2
chr1 = Int(26 * Rnd + 97)
Case 3
chr1 = Int(10 * Rnd + 48)
End Select
rndchr = rndchr & Chr(chr1)
Next
Form1.Caption = rndchr
end sub