The first thing to probably check is all your .NET updates for the machine.
Thanks for getting back. I did what you said but am still getting the same error. See attached image from when I tried to uninstall the program. When I click Continue I get the same error message as I posted originally. Do you have any other ideas for how I can uninstall/modify the program to get it working?
A quick search for error 1721 yeilds info that you have installer issues.
Service may be fixed by re-registering apparently.
see here random links:
also make sure you dont have antivirus or spyware/adware running during install.
I also found a reference to disable windows UAC - user access control.
I guess you should install using admin rights