> I'm trying to compil the example /libtest/example.dsw
> but I failed. I'm using VC6 (no SP pack)

Use VS 2003, with Openssl/Zlib/IPV6 installed. It's a bit painful to setup,
and you probably don't want to recompile everything: the latest releases
(-alpha) now contains (in src_win/libhttrack/) the libhttrack.lib which can be
directly used.