Sketchpad (short for The Geometer's Sketchpad) is the world's leading education software for teaching and learning mathematics. It gives students at all levels (from third grade through college) a tangible, visual way to learn maths, which increases their engagement, understanding and achievement, and makes the math itself more meaningful and memorable.

The greatest benefit of portable software is that there are no compatibility issues with various system versions. The packaged application always runs in isolation from the operating system running this application, and has its own registry and file systems for reading and writing data. As a result, portable software can use different versions of the same software on the same computer without affecting the system's registry or file system, ensuring its security and integrity. This way, you can even use untrusted applications without any risk to your system environment.

For some novice programmers, a good packaging tool can greatly improve their working efficiency. There are already many virtual packaging tools on the Internet, such as lightweight Enigma Virtual Box, Cameyo, MoleBox Virtualization Solution, P-Apps, as well as the famous VMware ThinApp, Turbo Studio, etc. In contrast, BoxedApp Packer has more powerful features and better compatibility. Its biggest drawback, however, is its poor packing compression rate.

It is well known that many legitimate games in the past needed to insert a CD for playing, or we sometimes need to quickly browse large programs or files packaged in the ISO format. In cases like these, software applications such as virtual optical drive came out. If you want a small, free virtual drive program rather than some large commercial software such as Daemon Tools, then you might as well give VirtualDVD a try.

If you are a music collector, then a good music management software is essential. MusicBee is an intelligent and easy-to-use music collection management software developed by Steven Mayall (from Russia) with the BASS audio library in 2008. Its functions are very comprehensive and powerful, and the program comes with a very strong capability to organize and manage a large music library.