Windows 100% Model.
I do not own this model.
This type of model (Windows 100%) is not available for download. She is only available through the purchase of a magazine, or the MikuMikuDance Starter pack.
This can be purchased here for ¥1,680: [link]
This is about $20, C$20, or 15€. (approx.)
The MikuMikuDance Starter Pack includes the following models:
Rio (Kei's Kittyler)
Various Chibi Animals (?)
Black Rock Shooter
Windows 100% Model not available through the start pack (as of November 11, 2010) are:
Nekomura Iroha (updated)
Pose- By Me. Can be downloaded here: [link]
(Note: Physics are turned off)