<span>Regsvr32.exe/u will unregister a component when run. Regsvr32.exe/u is a utility tool that is installed on Windows Xp or later versions of Windows. It has a 32-bit version and 64-bit version which can be found in the system root folder on a computer. It is capable of unregistering servers.</span>
Embedded.
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Real-time is for thing like your thermostat (Nest) etc.
Distributed is for huge number crunching supercomputers.
Multi-user would mean more than one person was using the device at the same time with a different device.</span>