ILSpy is a free and open-source .NET assembly browser and decompression tool that is pretty popular in the C# development field, developed by ICSharpCode (i.e. the development team of SharpDevelop). It has the user interface, layout, and decompilation functions similar to Red Gate Software's .NET Reflector. Moreover, sometimes for some assemblies that can not be decompiled with .NET Reflector (because of encryption), it's still possible to do that using ILSpy. Simply speaking, it has only one purpose - to finally completely replace .NET Reflector and do better.

Ubuntu has become bloated and extremely slow (even has started to follow the trend of quickly refreshing the version number, and indulges in this disgusting behavior) for a long time, and its requirements for hardware configuration has far exceed those of Windows now. In other words, running an Ubuntu OS today means making your computer fan spinning at a full jump all the time. The noise of fan alone is painful enough. As a result, more and more people are abandoning Ubuntu, meanwhile increasing lightweight alternatives has emerged and are emerging, and many of them are even able to run smoothly on a USB device, not to mention HDD or SSD. Thereinto, Manjaro is one of the best.

When using some foreign software, the biggest obstacle many users may encounter is not the use of the software itself, but the language used in its user interface. Although most software generally supports English by default, not everyone is proficient in English (especially the various professional terms often used in software). In this case, if you have to use a program that doesn't provide the language support you're using, you can localize this program by yourself using a translation memory application like Wordfast.

PDF-XChange Editor is a PDF reading and editing tool, once known as the smallest (now also becomes a bloated application), fastest and most feature-rich PDF document reader + editor. It focuses on the editing functions of PDF type of electronic documents, and supports many PDF file related editing functionalities such as creating, viewing, editing, annotation, OCR recognition and digital signature.

For some reasons and requirements, I occasionally need to reinstall Windows OS. That usually requires to correct the system time clock immediately, otherwise, the Windows time will automatically use the production time of your motherboard (i.e.: your BIOS time) as its default time. However, the very few built-in Internet time servers of Microsoft Windows are not functioning properly in many parts of the world due to the Internet blockade or some other reasons.