Vista 64 bit and Type 1 fonts

I came across a weird problem today where after installing a Type 1 font, it was still not available in Illustrator or Photoshop but was available in MS Word. It turns out that you need to install it in the normal fonts folder and put it in C:\Program Files (x86)\Common Files\Adobe\Fonts as well.

I don't know if this violates any font licenses so you should verify that you are allowed to have two copies installed this way.