IT_Compression 
What is ZLIB Integrating with WWHTTP This Version 
Class it_Compression 
it_Compression::CompressFile it_Compression::CompressString it_Compression::gzCompressFile it_Compression::gzCompressFiletoString it_Compression::gzUncompressFile it_Compression::gzUncompressString it_Compression::gzUnCompressStringToFile it_Compression::UncompressFile it_Compression::UncompressString 
it_Compression::cErrorMsg it_Compression::cTempFilePath it_Compression::lDeleteExistingFiles it_Compression::nCompressionLevel it_Compression::nDecompressMaxBlockSize it_Compression::nDecompressStartBlockSize