I need help installing yafaray renderer plugin.

[giannis196]

I have downloaded the YafaRay plugin (edited from Kerkythea to YaraRay)
for windows from Here: http://www.oortman3d.com/wings3d.html

i follow the instuructions i go to File > Install Plug-in > I browse to the tar file
but it when i browse the tar file it show me a error message that says:
" install of yafaray_plugin_1.4.1.tar failed: permission denied "

So how i can fix that?
Thanks!

Edit: is there any way to extract the 2 files by myself?
I have tried to extract them and then i located the .beam but it didn't worked.
Did you know if and how i can do it manually?
Thanks!