two states

look up SharePoint items in two-ways and add a shortcut link to related items.

Make two and three-state roll-over buttons in a flash.

bundled with two converter—DVD to MP4 Converter and MP4 Video Converter

It provides to calculate the realtime tempo differences between two audio tracks

Remove duplicates from a list, compare two lists for duplicates or uniques.

Advanced two and three-way file comparison/merging and folder synchronization.

A unique blu-ray subtitle tool to merge two subtitles into one.

It can transfer iPhone to PC, PC to iPhone, and transfer between two iphones.

DirDiff started as a tool to check two copies of files in separate directories

True two-way Query Builder ActiveX control to build complex SQL queries easily.