This sample demonstrates compression capabilities available in the .NET fr a mework. It builds a Windows Forms application that employs the GZipStream and DeflateStream types to compress and decompress files. The sample also introduces several types that are new in the .NET fr a mework version 2.0.-This sample demonstrates compression capabilities available in the. NET fr a mework. It builds a Windows Forms application that employs the GZipStream and DeflateStream types to compress and decompress files. The sample also introduces several types that are new in the. NET fr a mework version 2.0.