Click Once - Unable to install Rapidfire Tools Network Detective Application
Clean the ClickOnce application cache under the ClikOnce cache folder.
If the OS is Windows 7, or 8 the folder should be users\[username]\appdata\local\apps\2.0
If the OS is Windows xp, the folder should be Documents and Settings\[username]\Local Settings\apps\2.0
Backup your application files in the cache folder,delete the clickonce cache files and reinstall the Rapidfire tools application as an Administrator.