A field device management apparatus may include a plurality of COM in-process servers, each of which acquires and manages device data related to a corresponding one of field devices, and a launch-program COM in-process server that stores a launch-program, the launch-program activating an instance in each of the plurality of COM in-process servers, the launch-program preventing four different functions from being executed directly by an OS in the plurality of COM in-process servers. The plurality of COM in-process servers may be initialized on the Microsoft Windows operating system to generate COM objects in different memory spaces.