Updated: 6/12/2004
Libraries

AddZip library , 1,900kb , Rating: 4: Shareware. Win 3.1, Win 9x. For VB, VC++, Delphi, Borland C++, C++ Builder. Zip/unzip library, 16 or 32-bit. This Activex control supports encryption, disk-spanning, and long filenames. Shareware version does not have Freshen or Update, but full version does. [Report a dead link]
http://welcome.to/addZIP
Compression DLLs: More compresion DLLs and OCXs too. Includes DLLs for: zip, LHA, ICE [Report a dead link]
http://www.programmersheaven.com/zone15/cat158/index.htm
FTP4w: Free DLL library for FTP for pascal and VB. [Report a dead link]
http://kdiggins.cjb.net/
Info Zip library, free , Zip lib: Info zip. This covers compressing single files. It is not an archive library useful for compressing multiple files into one ZIP. For that go to www.gleaf.com. . Info zip also at: http://www.ctan.org/tex-archive/tools/zip/info-zip/. [Report a dead link]
http://www.info-zip.org
Scintilla edit control: RTF control free. [Report a dead link]
http://www.scintilla.org/ScintillaDoc.html
Zip library, BCB , Rating: 3: FREE. Zip library for BCB (Borland C++ Builder) and Delphi. Requires C, it has no VB hooks. Comes with DLL, VCL, and source code. [Report a dead link]
http://www.geocities.com/SiliconValley/Orchard/8607/
ZipVB: Allows VB4 to make Zip archives. [Report a dead link]
http://hello.to/trivo