I`m having trouble with window reflection showing a world background. How do i remove it? I have created a window in my project, and it's working fine, but in the reflection and when I look from the inside, through the window, a "world" is shown that I only see in the reflection and when I look through the window. I changed the environment texture to see if that would change anything. It did just that, but I don't want any environment to show in the reflection, or through the window. Is there an easy way to fix this?

Thanks ;)
You could turn of the glossy (reflective) rays and the camera (directly visible) rays for the world in the cycles settings panel.