Hi Joe,
For HCS12 products, please select CW v5.1, it supports windows 7 and other 64 bit OS.
This version can be downloaded from:
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=CW-HCS12X
Hope it helps!
Fiona Kuang
Technical Information & Commercial Support
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------