You've downloaded the package, unzipped it and it runs just fine... or does it!
The update button doesn't work :(
The issue is that windows has handily blocked access to the dlls the registration tool calls.
The fix is to right click each file in turn and unblock them... or you can run this nifty command in powershell and save yourself from a nasty dose of RSI.
1. Run PowerShell as an Administrator
2. Run the following command but update the path to the folder were you unzipped the tool:
get-childitem "C:\Software\Dynamics 365 Plugin Registration" | unblock-file
3. Have a pint, you've earned it :)
