We have a few new Windows 8 machines at our company and we are running into issues installing Salesforce for Outlook (2007).  The software installs, and items can sync, but the add-ins do not launch.    

They do not appear under Help > Disabled Items....  

They are listed as disabled under Tools > Trust Center > Add-ins > Manage COM Add-ins, but get the following message:  "This add-in is installed for all users on this computer, and can only be connected or disconnect by an administrator".  If I log in as an admin, I can activate these add-ins, but they keep reverting back to disabled and the message when try to activate this is not:  "Not Loaded.  The Managed Add-in Loader failed to initialize."

Not sure if this is related, but after installing and starting the application, if I right click and hit settings, I received two script errors:

https://ssl.salesforce.com/jslibrary/1360895802000/sfdc/Security.js

and then

https://ssl.salesforce.com/secur/frontdoor.jsp?sid=ORGIDGOESHERE%21ARMAQIT9SNoFN9q8wcqtr1sKaBYXQz.JTEDaCZrbznF9sb