Url rewriting with classic asp

isapi rewrite

[mbm2000]

Hey all
I need to change this this actual url
[domain.com...]
To this virtual url
[domain.com...]
with isapi.
I saw some topics about asp and isapi and some codes like this:
RewriteRule ^/(\d+).htm$ /viewad.asp?ID=$1
but I don't know how i can use them but i think i must save them in a file and i don't know the fomat of this file.
please help
thanks

[mattur]

ISAPI_Rewrite is a widely used extension for IIS. It allows you to re-write URL's as above. It must be installed on the server to work - it's a separate product, not included in IIS. Google it for more info.

Other .Net-based techniques can also be used, eg IIS7 has a URL rewriting module [learn.iis.net]. HTH.