You got a .rar file and you don't how to open it, some one asked you to send him "a rar file" or you just need a good archiving software? Download and install WinRAR.
Put your space and general knowledge to a test by answering some questions covering the achievements of mankind in our galaxy and beyond. A simple and intuitive way to build up your knowledge profile.
Lime scale is often found as a similar deposit on the surface of pipes and other surfaces where "hard water" has evaporated. In this lesson I will show you how to clean it.
Windows 7 have a nifty feature which combines the windows of opened applications under the same taskbar button. If you don't like it you can always turn it off.