The global.asa file is a special file that handles session and application events. This file must be spelled exactly as it is here on this page and it must be located in your websites root driectory. This is a very useful file and can be used to accomplish a variety of tasks.
For example, we use the global.asa file on this website to display the number of Active Users on our site. Rather than inputting data into a database and keeping a stored record of it, our global.asa file acts as a monitor of how many users are visiting any page our website. There are no records stored in any database or text file, the information just flows in and out. Take a look at the code below we use to do this:
What the global.asa file does is create a session for each new user that is actively surfing any part of our website. Then, the session will time out or end either when the user leaves our website or at the default setting of 20 minutes.
There are several other things you can use the global.asa file for, but this tutorial was just intended to show you what makes this file special and to give you an idea of what it is used for
http://www.aspwebpro.com/tutorials/asp/globalasa.asp
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