Crystal XP

Crystal XP is a tool that allows you to adjust the level of transparency of your applications. The user interface of the program consists of a small window in which you can access various options on the left.
Thus, in the "Transparency" area, you can enable the option to make all windows or the taskbar transparent. You can move a slider to set the transparency level for the active and inactive windows.
Additionally, you can add a program as an exception, by using the file browser (the "drag and drop" method is not supported), as well as import and export a list of applications in this category.
In the "Applications" area, you can view a list of all programs which are currently running, along with their handle, process ID and process name. Also, you can access the context menu to reload the list, restore, minimize, maximize or close application, as well as automatically add the respective app to the exception list.
Furthermore, the "Generic" section allows you to view CPU usage and adjust the update range level, disable the tray icon, change the transparency on the active process or active window only, select preferred language, assign keyboard shortcuts, disable the option to always be on top, set Crystal XP to automatically run at Windows startup, and more.
The program uses a very low amount of system resources and we haven't encountered any kind of problems during our tests. Even if Crystal XP doesn't include a help file, it is easy to use by beginners as well.
The bottom line is that Crystal XP represents a simple solution for customizing your operating system by making the windows transparent. We strongly recommend it.