i see some sites have /index.php (like mine)
but some have /index.asp
what is .asp?

It an language that allow you to use full programming language to help you build web applications easier.

See this website What is asp

Asp stands for active server pages. You can learn more here: http://www.w3schools.com/asp/default.asp

asp and php are pretty similar in that they can do pretty much the same things.

however asp is primarily for windows based servers while php is for linux.

thats just a short answer though.

thanks for all your inputs, your link helped alvin, feel free to close brownsugar :]

^I'm glad I could help you. If you have any more problems concerning .asp pages or anything else just feel free to PM me.