I don't know much about PWS, but it is possible to have both exist on the same machine. If you want to use PWS server for both you'd configure it to use the PHP executable to process .php extension files. If you want to install Apache in the same enviornment, configure it to listen on a different port than the default port 80. Then all you have to do is type in the port with the address
http://localhost:8080/, for port 8080.
hth,
Rich
::::::::::::::::::::::::::::::::::::::::::
The Spicy Peanut Project
http://www.spicypeanut.net
::::::::::::::::::::::::::::::::::::::::::