Notetask 1.1 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software lies within Office Tools, more precisely Document management. We recommend checking the downloaded files with any free antivirus. This free tool was originally designed by plaintool.
From the developer:
Notetask, a free and open-source cross-platform task manager for Windows and Linux. The core idea of Notetask is simple: it stores tasks and notes in plain text files where each line represents a separate task or note. Users can also choose to save their files in an encrypted format for personal information, while all data remains local to their device.
You may want to check out more software, such as Timer 2007, XLplus Add-On: Basic II Ver. or Merge Cells Wizard, which might be related to Notetask.