OnStartPage is a default function an asp pages calls when
it creates the object.

Project needs Reference to ...
"Microsoft Active Server Pages Object Library"

Also, the object has to be created using the asp Server object

set objME = Server.CreateObject("MyDll.MyClass")

Private Request As IRequest
Private Response As IResponse
Private Server As IServer
Private Session As ISessionObject
Private Application As IApplicationObject

Public Function OnStartPage(aspScriptingContext As ScriptingContext)
    On Error Resume Next
    
    Set Request = aspScriptingContext.Request
    Set Response = aspScriptingContext.Response
    Set Server = aspScriptingContext.Server
    Set Session = aspScriptingContext.Session
    Set Applicaiton = aspScriptingContext.Application
    
End Function