What are the Gzip and Deflate schemes/algorithms used for compression in IIS 6.0?
There are two basic types of compression algorithms that most modern browsers accept and can decompress: Gzip and Deflate. IIS 6.0 built-in compression applies these schemes or algorithms to files in order to reduce their size, the compressed files are sent from the Web server, and the client browser then decompresses and renders the files. Gzip (GNU zip) is a compression utility designed for much better compression and freedom from patented algorithms. Gzip reduces the size of the named files using Lempel-Ziv coding (LZ77). Deflate is a smart algorithm that adapts the way it compresses data to the actual data itself. This lossless deflate compression algorithm is based on two other compression algorithms: Huffman encoding and LZ77 compression.