Start->settings->control panel->add/remove programs, click on add/remove windows components, click on Internet Information Services(IIS) and install it
2. create a new web application
Start->settings->control panel->administrative tools->Internet Services Manager, right click on Default Web Site under your machine name, select New->Virtual Directory, follow the instructions to create a new web application, move your asp files to the directory you specify,
3. Open a browser, connect to
http://localhost/YourWebApplicationNameCreatedInStep2/WhateverFileNameYouHave.asp