One more check - see if Windows Installer service is started. I'm managing a Domino shop. For remote BlackBerry Manager install, 1 of the pre-requisites is that a Lotus Notes client must be installed first. On top on that, there are some other non-Domino requirements listed in KB12277. You may like to check them out.
Article Title: Install the BlackBerry Manager on a remote computer for administration of the BlackBerry Enterprise Server
Article Number: KB12277
Link: BlackBerry Search Results