Hi
I think you can use Request.ServerVariables to get the parts of the url. And combining that you will get the exact url.
For Ex:
Request.ServerVariables("HTTPS")
Request.ServerVariables("HTTP_HOST")
Request.ServerVariables("SERVER_PORT")
From the w3schools you will get some list of the useful server variables.
http://www.w3schools.com/asp/coll_servervariables.asp[
^]
Regards
Dominic Abraham