If your server is hosting ASP.NET 1.X and ASP.NET 2.0
applications then it is better to create the application pools and run the
applications under designated application pools. Application pools allows you to
separate the .NET 1.X and .NET 2.0 process from each other. You can create
application pools in Window Server 2003 and IIS 6 by using the control
panel -> IIS and click on the item which says "Application Pool". Once, you
have created the application pool you can simply right click on the website
folder, select properties and make it to run under the particular application
pool.
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