This example leverages internal Window's functionality to obtain a GUID.  Obviously this is useful only on IIS. Refresh the page to obtain a new GUID.

What is a GUID? Excerpt from Wikipedia: "A globally unique identifier or GUID is a special type of identifier used in software applications to provide a reference number which is unique in any context (hence, "globally"), for example, in defining the internal reference for a type of access point in a software application, or for creating unique keys in a database. While each generated GUID is not guaranteed to be unique, the total number of unique keys (2128 or 3.4×1038) is so large that the probability of the same number being generated twice is extremely small."

GUIDs are useful in creating anti-CSRF tokens for web applications.  Generate A GUID Using PHP  A Pseudo Unique ID Using ASP

Function getGUID
    Dim TypeLib, tg
    On Error Resume Next
    Set TypeLib = Server.CreateObject("Scriptlet.TypeLib")
    If Err Then
        Response.Write "GP ERROR 1"
        Response.Write err.number & " " & err.description & " " & err.source
        Response.End
    Else
        tg = TypeLib.Guid
        getGUID = CStr(Left(tg, Len(tg)-2))
        Set TypeLib = Nothing
    End If
    On Error Goto 0
End Function

Simple Use: Response.Write getGUID
  

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