This function can be used to have a random password generated. It allows you to specify valid characters as well as specifying number of characters.

<%
Function Password_GenPass( nNoChars, sValidChars )
' nNoChars = length of generated password
' sValidChars = valid characters. If zerolength-string ( "" )then
' default is used: A-Z AND a-z AND 0-9

Const szDefault = "abcdefghijklmnopqrstuvxyzABCDEFGHIJKLMNOPQRSTUVXYZ0123456789"
Dim nCount
Dim sRet
Dim nNumber
Dim nLength

Randomize 'init random

If sValidChars = "" Then
sValidChars = szDefault
End If
nLength = Len( sValidChars )

For nCount = 1 To nNoChars
nNumber = Int((nLength * Rnd) + 1)
sRet = sRet & Mid( sValidChars, nNumber, 1 )
Next
Password_GenPass = sRet
End Function
%>


Call it like this to generate a 10 letter long password: 

<%Response.Write "Your password: " & Password_GenPass( 10, "" ) %>

Or if you want to just use certain characters: 

<%Response.Write "Your password: " & Password_GenPass( 5, "ABCabc1" ) %>

This will generate a random password only using the characters ABCabc1, therefore it give might result like: Your password: CabCB  

The Result: Your password: jN0RxF22tP or 5 Constrained Characters: Your password: cABCB