addZIP Compression Components 

The addZIP Compression Components are the simplest way to add thePKZIP compatible file compression and decompression to your programs. These royalty-free, multithreaded ActiveX/COM components are compatible with all 32-bit development software.
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dtLibrary 

dtLibrary is a class library packaged as a single ActiveX DLL. This library offers multiple classes for retrieving and/or updating system information, including ini files, registry access, file/disk information, memory and power information, etc.
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VoltoCDX CDDB Component 

Recognises audio CDs and retrieves title and track information from freedb.org - a database of over 400,000 CD titles. VoltoCDX supports the latest CDDB Server Protocol (level 5), and also provides both query and submit functionality.
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