In a attempt to clarify the situation with fake release versions of 
        PKZIP, we are releasing this list of known hacks. If you have 
        any information as to the original source of any of these hacks, 
        please either leave mail for the sysop on the PKWARE BBS 
        (414-354-8670), or call us at 414-354-8699.

        Known PKZIP related hacks as of 9/30/92:

        Name                    Information
        -------------------------------------------------------------------
        PKZIP120                Early hack of 1.1
        PKZIP20B                Hack of 1.1 
        PKZIP_V2.EXE            Trojan, will erase hard drives
        PKZ201.ZIP              Hack of 1.93
        PKZ201.EXE                   "
        PKX201.EXE                   "
        PKZ210F.EXE             Unknown
        PKZIPV2                 Trojan, will erase hard drives
        PKUNZIP.COM             Unknown
        PKZIP203.EXE            Unknown
        PUTAV 1.93              Fake putav program (trojan)
        PKZIP 1.99              Unknown
        PKZIP 2.02              Unknown
        PKZIP 2.2               Trojan destroys hard drives
        PKZ305.EXE              Hack of 1.93, fake AV.

        General guidelines for detecting a hack:

        The real PKZIP 2 will use a method of compression called
        "Deflating".  There are FOUR methods of Deflating plus a
        NO compression option: -ex -en -ef -es -e0.

        PKWARE's AV code is: PKW655.  The AV method used by PKZIP 1.10 and
        1.93 is different from that used for PKZIP 2.  

        The PKZIP 2 documentation is completely new.  All hacks shown
        above either have no documentation or a slightly modified version
        of the PKZIP 1.0 docs.

        PKZIP 2 will be distributed in a self-extracting (EXE) file.
        PKWARE software would never be distributed as a .ZIP file or any
        other archive format.
        
        PKZIP 2 will be sent to registered users before it is posted
        by PKWARE.  PKZIP 2 will be available on PKWARE BBS as soon
        as the upgrades have been shipped.

        PKWARE Inc. Phone numbers and address will be on the real PKZIP 2:

        PKWARE Inc.
        9025 N. Deerwood Dr.
        Brown Deer, WI  53223
        (414)354-8699
        (414)354-8559 FAX
        (414)354-8670 BBS

        PKWARE BBS offers 14.4K Dual Standard modems (v.32/v.42bis) 
        on all nodes.