Whenever posting questions on these forums, it sure helps if you give us more information about your computer, such as the operating system, etc. and in your particular instance, which version of Real Player do you want. The more information you give us, the better informed our answer will be.
There are a number of good media players available, so you might consider them also...but...
It depends on the specific version of Real Player that you want, but here are a couple of links that should get you what you want:
Here's a link to "Older" versions of RealPlayer, such as RealPlayer 8 which might suit your needs better depending on the version of Windows you have installed.
Hope this helps.
i unistalled real player, how do i reinstall? Duh