Sample script that searches Active Directory for all user accounts created on October 1, 2007 or later. The whenCreated attribute is replicated to the Global Catalog. This means you can connect to a Global Catalog server and search across the forest for users by the date their account was created.

Visual Basic
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On Error Resume Next

Const ADS_SCOPE_SUBTREE = 2

dtmCreationDate = "20071001000000.0Z"

Set objConnection = CreateObject("ADODB.Connection")
Set objCommand =   CreateObject("ADODB.Command")
objConnection.Provider = "ADsDSOObject"
objConnection.Open "Active Directory Provider"
Set objCommand.ActiveConnection = objConnection

objCommand.Properties("Page Size") = 1000
objCommand.Properties("Searchscope") = ADS_SCOPE_SUBTREE 

objCommand.CommandText = _
    "SELECT Name FROM 'LDAP://dc=fabrikam,dc=com' WHERE objectClass='user' "  & _
        "AND whenCreated>='" & dtmCreationDate & "'" 
Set objRecordSet = objCommand.Execute

objRecordSet.MoveFirst
Do Until objRecordSet.EOF
    Wscript.Echo objRecordSet.Fields("Name").Value
    objRecordSet.MoveNext
Loop