You don't have to install the program on your hard drive. You can import the hair styles directly from the CD. I use the original pink one and the purple update that came immediately after the original. The second one doesn't have as many styles on it, but it has some that are different. The only problem is that the Cosmo hair is only facing forward. You have to use some cut and paste to get it to work on side views and different angles, so you can really only use it on faces that are straight forward facing toward the camera. Melanie