Originally Posted by
Saab Dastard
Bear in mond that the PDC emulator is - by default - the primary time source in a Windows 200x domain, and must therefore be treated quite differently to other servers and PCs.
Probably not appropriate to present it here as a registry change for standalone PCs - which it is reasonable to assume is the target here.
SD
Standalone PCs will be fine with the registry change with the one exception being if they are subsequently added to a domain. Aside from this eventuality, the change is benign for standalones, and even if the machine were added to a domain the only issue would be time going out of sync with the PDC by more than 5 mins for kerberos. However, with that said, it is not recommended to synchronise more than the PDC emulator within a domain.