Instructions for removing the inventory service:
First, you will need a command prompt. This can be done by going to start|run then typing in 'cmd', at which time you will need to press enter.
Next, navigate to the C:\ocs-ng directory. On my system, at the command prompt I enter 'cd..' twice to get to the 'C:\' prompt, then I type 'cd ocs-ng', at which time I see 'C:\ocs-ng>' This is the correct directory.
Finally, at the command prompt, enter 'inventoryservice -remove'. This will remove the service.
This can be confirmed by viewing the services tab in the MMC console and making sure the 'Inventory Service' has been removed from the list.
