simple question

i just downloaded a vlc player from videolan.org and when i try to open it, it says

"vlc-1.1.0-win32.exe" is an executable file. Executable files may contain viruses or other malicious code that could harm your computer. Use caution when opening this file. Are you sure you want to launch "vlc-1.1.0-win32.exe"?

is it safe t o open it?