Microsoft Gadgets are very classic tiny desktop applications that are executed in a desktop sidebar or directly on the desktop. Unfortunately, it only exists on Windows Vista and 7. They were phased out with the launch of Windows 8 and replaced by tiles on the Start Screen, as Microsoft cited concerns that the sidebar introduced vulnerabilities in the operating system that could allow for remote code execution.

CAD Markup is a powerful tool designed specifically for professionals in fields such as architecture, engineering, and construction, developed by Guthrie CAD/GIS Software from Australia. It allows users to annotate and mark up CAD drawings with ease, enhancing communication and collaboration throughout the design and review process.

The PDF format, designed as a portable data exchange medium, is inherently difficult to modify. This can pose challenges, especially when you need to change specific words or replace text across numerous PDF files, particularly if there are several instances of duplicate text.

System Scheduler is an outstanding tool for scheduling the unattended execution of applications, batch files, scripts, and more. For those familiar with the built-in Task Scheduler in Windows (under Control Panel\All Control Panel Items\Administrative Tools), it serves as an excellent, friendly alternative that offers great flexibility and a variety of features. It operates completely independently of the Windows Task Scheduler, without any dependencies on it.

Mixxx is a free, open-source yet powerful DJ software solution for Windows, Mac and Linux platforms. It provides a comprehensive platform for both amateur and professional DJs, and offers a wide array of features that facilitate live mixing, including support for various audio formats, advanced beat detection, and a customizable interface.