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<install cmd='net time \\yourntpserver /set /yes' />
<install cmd='%COMSPEC% /c w32tm /config /update /manualpeerlist:"yourntpserver,0x8 0.pool.ntp.org,0x2 1.pool.ntp.org,0x2" /syncfromflags:MANUAL' />
<upgrade cmd='net time \\yourntpserver /set /yes' />