AutoCAD is undoubtedly the most popular and powerful CAD modeling software. But as a commercial software, it is really, really expensive. FreeCAD is a free, open-source, cross-platform and general-purpose 3D CAx (CAD, CAM, CAE), PLM modeling tool specially designed for home user/hobbyist, experienced CAD user, programmer or educator.

Devart's dbForge Studio is a series of database server all-in-one software from Czech Republic. It can help database developers and administrators efficiently fulfill any complex routine tasks on three primary RDBMS (relational database management system): Microsoft SQL Server, MySQL and Oracle Database.

Windows Firewall Control (WFC for short) is a practical tiny app that is equivalent to a GUI extension application of the built-in Windows Firewall. It enables users on Windows Vista or higher to set up firewall rules in a much simpler and more intuitive method.

Nitro Pro (AKA: Nitro PDF Professional) is a versatile and fast PDF solution specially designed for business users. It is a combination of functions like PDF reading, editing, creating, commenting, optimizing, as well as the Office document formats conversion. It is one of the most user-friendly PDF solutions that can completely replace, direct challenge the expensive, bloated and slow Adobe Acrobat.

Dia (full name: Dia Diagram Editor) is a vector-based and Visio-like structured diagram drawing tool made by Alexander Larsson from Germany. It's lightweight, free to use and open-source, supports for Windows, Mac OS X and Linux.