IIS 6 is supposed to have improved its compression engine, making it much more effective than previous versions. Why do I need TurboIIS?
The compression realized by IIS 6 may be better than IIS 5, but it is approximately 20% less effective than the compression that can be experienced using TurboIIS. IIS 6 compresses only the html and static files. TurboIIS on the other hand compresses those as well as asp, aspx, coldfusion and all other dynamic pages. These dynamic pages represent 90% of the html that comes out of a server so its an important factor to consider when evaluating compression. Moreover, TurboIIS caches dynamic and static content which prevents redundant access to the database and increases the download speed even more. TurboIIS also can compress malformed chunked communication, which is typical of ColdFusion. The dynamic load carrying capabilities of TurboIIS also let the filter decide at what level to compress files according to the available memory of the system. That means that TurboIIS will never overload the server, unlike other compression filters. Finally, TurboIIS can compress the JPEGs on your site
