In the daily use of Windows, a lot of situations can lead to a DLL file related error. For example, installing/uninstalling some software, hardware driver is missing, virus infection, forcibly installed adware, implanted spyware and malware (DLL files occupied or covered). All these cases can cause your system/software to run slow or even crash down, or make your Windows reflect more and more slowly.

Microsoft Visual C++ Redistributable Packages are required public DLL runtime libraries for any software written using Microsoft Visual Studio 20XX IDE, which can be interpreted as the dictionary files for running programs. And considering the application's file size, most of them do not come with those common DLL files. As a consequence, installing the corresponding runtime libraries are always the first thing to do before using this kind of applications.

PIDKey is a lightweight and free database-based tool mainly used to test the validity of Microsoft Windows/Office/Visual Studio (and more) product keys in batch, made by Ratiborus and his friends from Russia. With it, we can say goodbye to the huge VAMT (Volume Activation Management Tool).

As Windows' fatal, non-interferential system error - this is often referred to be system crash, Blue Screen (AKA: Blue Screen of Death, BSoD for short) - it's just as classic and famous as Windows OS itself!

As one system trash/privacy cleaning tool, on Windows, CCleaner has already unified almost the whole PC world for long. Especially when it could work with Winapp2.ini, BleachBit just can't compete with it. Therefore, BleachBit's main market is still in the numerous Linux distributions, and in fact, it does very well.