Configuration settings for the TCP/IP protocol are stored in several Registry keys. You can find some of these settings in the following branch:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services
This branch contains the keys
\VXD\MSTCP,\VXD\MSTCP\ServiceProvider,\VXD\MSTCP\NodeType, and \Class\NetTrans\000x, all of which contain multiple TCP/IP settings.
Open your registry and find the key below.
NC_AllowAdvancedTCPIPConfig - Restrict changes to advanced TCPIP configuration
Create a new DWORD value for each required restriction from the list below. Set the value to "0" to enable the restriction or delete the value to disable it.