You will also be required to register with Microsoft at the end of the process. If you have a Hotmail or Windows Live account already then use that. If not then you will need to sign up (it is free) for one.
You'll need a reasonably fast Internet connection to the PC where you are going to install Visual C++ 2008 Express Edition. Dial-up will take too long for a download that's nearly 80MB without MDSN or over 300 MB with it.
Starting the DownloadGo to the Visual Express Download Page and click on the Visual C++ Express logo. That will download vcsetup.exe. It's under 3 MB. Save it somewhere then run it. Keep this file if you want to reinstall.
It will give you the option of submitting anonymously to help Microsoft improve the experience. I have no problems with this but it's your choice.
On the next page : Instructions for the download and install.