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Hi,

I am using IIS 5.0 as my web server.

I have developed an ASP application which contains a login page.
In this login page, our client will enter their username & password. Then he/she press the submit button.

At the server side, it will update record at the database and perform some background tasks.
After all these tasks success, at the client side, the browser will redirect to the welcome page!

In my case, now I want to implement a testing in how many users my system can be supported simultaneously!

Is there any tool I can use?
How can I simulate this suitation? i.e. many users login at the same time!

Further, suppose the concurrent user that the web server can be supported cannot satisfy the requirement of our customers. How can I use the load-balancing method to solve this problem? Which device or software can be used?

Thanks for your opinion!