adler-32crc校验，用VB做的一个程序-Adler-32crc checking, VB doing a procedure

ZLIB is a compression library compatible with the gzip format. It has been written by Jean-Loup Gailly and Mark Adler. It is free software. The official page is there, but if you are interested only in Windows 95/98/NT/2000/XP/2003 support, you hav