Delphi 2007 comes with the RTL unit zlib.pas which links to adler32.obj. adler32.obj is a precompiled object file implementing the Adler-32 checksum (most likely implemented in c). Delphi apparently doesn't actually use that function since it is simply declared as ... [delphi] procedure adler32; external; [/delphi] ... which is plain wrong but gets the job … Continue reading Using the adler32 checksum in Delphi 2007 →