Dear Brock,

You might try the Microsoft-fixit in this thread:

http://amazingcharts.com/ub/ubbthreads.php/topics/62958/Client_Computer_Install_Issue_

It solved several different (and mysterious) AC7 install-errors for me when I ran it to uninstall and reinstall what must have been subtly corrupted .net's on each computer.

Here's the Microsoft-fixit:

http://www.microsoft.com/en-us/download/details.aspx?id=15697

By trial-and-error, I found that the repair-option failed, but its uninstall and reinstall options let me install AC7 and get AC7 to work.

Cheers,

Carl Fogel