Open Source C To-Do Lists Software for Windows

PNotes is light-weight, flexible, skinnable manager of virtual notes on your desktop. It supports multiple languages, individual note's settings, transparency and scheduling. Absolutely portable as well - no traces in registry. PNotes.NET edition requires .NET framework 4 Client Profile

Gchore is a simple tool that tracks your chores, and reminds you to do them on a daily basis. It is not a general todo list, it is better suited for repeating tasks, such as taking out the garbage on mondays.

Web and cellphone mobile application to assist persons, groups and companies assign a meeting at the suitable place and time according to their location and time sheet and shared resource planning. Includes goods and service public catalog, shared by people to coordinate their efforts. Affordable for use anywhere and can installed at the company's web site or cellphone thanks to low technical requirements. Implemented in pure C. Designed as SOAP service to easy integration with other systems.

PlanSH is a simple cross-platform planner / time tracking application, that works from command line. It's purpose is to track tasks/ time spent on tasks fast. Plan and track your tasks without mouse and windows. Just join to develop more features

A simple issue tracker with a standalone database using SQLite. Please, read the Wiki pages for more information.