One of the most commonly missed features of setting up a web server is configuring compression. All modern Browsers support both GZip and Deflate compression for content. All commercially viable web servers support GZip and Deflate compression types. IIS is no different. The reason many miss this feature is you have to configure it the way you need it to work in order for it to work. I am going to cover configuring compression in IIS 6 in this entry.