Migrating DHCP from Server 2003 to Server 2012 R2

this is something very common lately and always I follow this post: http://windowsitpro.com/windows-server-2003-end-support/migrating-dhcp-server-2003-server-2012-r2
Netsh
DHCP
Server \\<DHCP_2003_Server_IP_Address>
Export c:\export\2k3dhcp-database all

Performing this task will create a file in the c:\export folder named 2k3dhcp-database

Copy this file to the computer running Windows Server 2012 R2 that will function as the new DHCP server. You’ll need to install the DHCP server role on this computer and authorize the DHCP server in Active Directory before performing the following actions.

Open an elevated command prompt and run the following commands (this assumes you’ve copied the file to a folder named c:\import\)

Net stop DHCPserver
Del c:\windows\system32\DHCP\DHCP.mdb
Net start DHCPserver
Netsh
DHCP
Server \\<DHCP_2012R2_Server_IP_Address>
Import c:\import\2k3dhcp-database
Exit
Net stop DHCPserver
Net start DHCPserver
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