If you want to run a test outside of the Selenium IDE, then you need to install Selenium Core.
After downloading Selenium Core and extracting the files, copy the Core subfolder into your Inetpub\wwwroot folder. The Core folder includes the TestRunner.html page. Rename the Core folder to Selenium.
The Selenium Core download includes a Tests folder. You can copy this folder into your Inetpub\wwwroot folder. When you open TestRunner.html, select either TestSuite.html or ShortTestSuite.html as the Test Suite.
If you need to execute tests against a remote website, then you have three options. First, you can run the test within Selenium IDE.
Second, you can run the test against a remote website by using the HTML Application (HTA) version of TestRunner.
i miss this point:
HTA is used to run the test on Internet Explore,not record a test
The TestRunner.hta page is located in the same folder as the TestRunner.html page.
The final, and best, option for executing tests against a remote website is to use Selenium RC. Selenium RC can be used to control any modern browser. It also works fine with remote domains. Selenium RC is a separate download from the Selenium website.