Abale Zip: Supports multithreaded Zip compression. By Abale.com. [Component, Commercial]
ActiveXZip: A ZIP compression component. By HDSE Software.
Chilkat Zip: Provides in-memory and file Zip compression. By Chilkat Software, Inc. [Control, Shareware]
csASPZipFile: An ASP component to create zip files and control file downloads. [Comonent, Commercial]
Data Compression ActiveX and DLL Components: Makers of DynaZIP and Active Delivery Zip Data Compression and Self-Extract ActiveX, DLL, VCL, VBX Component Library with ASP support, all royalty free.
Inner Media: Maker of DynaZIP and Active Delivery zip and unzip data compression component libraries. Active Server Page (ASP) compatible, with ActiveX, DLL, VCL, OCX, VBX and other interfaces.
littleBIGware addZIP: Provide standard PKZIP compatible multithreaded file compression and decompression. By littleBIGware. [Component, Commercial]
Polar ZIP: Data compression component that supports multiple compression levels, and repairing corrupted ZIP files. By Polar. [Component, Commercial]
PowerTCP Zip Compression Tool: Add powerful file compression and AES encryption to any Windows or ASP application.
SA-Archive: Supports management of archives files (ZIP, CAB) including creation, extraction, enumeration and signing with Authenticode. Requires runtime licensing. By SoftArtisans, Inc. [Component, Commercial]
Sax Zip Objects: Supports ZIP data compression. By Sax Software Corp. [Component / Control, Commercial]
UPL Compression: A compression ActiveX control. It has Dynamic Huffman, Arithmetic, BWT, Ppm and several Lampel Ziv flavors.
Xceed Zip Compression Library: A software component that provides functions for compressing and uncompressing files and data. Its most popular functionality is the ability to create, read and write Zip files.