Love Cis but ran into this problem upgrading Vista to Win 7 RC 1. The install works 'till I blue screen at file "inspect.sys". It appears CIS is the problem as discussed here: http://social.technet.microsoft.com/Forums/en/w7itproinstall/thread/69f2f3d2-71f4-4393-9a67-aa70eed19e58
Uninstalling CIS apparently allows the install completion. I read here I can re-install CIS in vista compatibility mode. Does this work?