Short file descripion (for longer descripiton see files themselves!)

info-unz.pas  main dll code, calls zipread and unzip
zipread.pas   functions to read in internal zip file directory 
unzip.pas     main unzip units, includes all the files starting with z_
z_global.pas  global constants, types and variables for unzip
z_tables.pas  lookup tables for CRC, huffman tables...
z_generl.pas  general funcions for file I/O message loop, etc.
z_huft.pas    huffman tree generation and destruction
z_inflat.pas  inflation code, unzips deflated files
z_explod.pas  explodes imploded files
z_shrunk.pas  unshrinks shrunk files
