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A program that I work on assumes that the UUID generated by the Windows RPC API call UuidCreateSequential() contains the MAC address of the primary ethernet adapter. Is this assumption correct or should I use a different method to get the MAC address?
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I wouldn’t rely on this – the only reason that UuidCreateSequential has the MAC address is it’s trying to guarantee that the UUID is unique across the network. Plus, why would you use such a weird way to get a MAC address? Use WMI and actually ask for the MAC address instead of a side-effect of a UUID creation function.