The IHSDM software may be downloaded free-of-charge at http://www.ihsdm.org.
The download process is simple:
First time users should download the full distribution, which includes a complete set of documentation accessible through a Help Browser.
The IHSDM - HSM Predictive Method 2012 Release is currently available. Periodically, intermediate patches and updates will also be posted at the IHSDM Public Software download site, http://www.ihsdm.org.