So, this is the second time I've tried to install this on my main development machine (fine on my laptop) and it's failed. The installation tells me to look at the logs, but to be quite honest these are useless. They are huge and it's impossible to find the reason for failure; it's not put at the end of the file, but buried within the rest of the logging information. Wouldn't it make sense to include the error information at the end, where it can easily be found? The only nice part is this line:
Hello, I'm your 32bit Elevated custom action server.
Nice that it's polite, but I'd settle for it working.