examples
IPCONFIG
To display the basic TCP/IP configuration for all adapters, type:
			ipconfig
			To display the full TCP/IP configuration for all adapters, type:
			ipconfig /all
			To renew a DHCP-assigned IP address configuration for only the Local 
			Area Connection adapter, type:
			ipconfig /renew "Local Area Connection"
			To flush the DNS resolver cache when troubleshooting DNS name 
			resolution problems, type:
			ipconfig /flushdns
			To display the DHCP class ID for all adapters with names that start 
			with Local, type:
			ipconfig /showclassid Local*
			To set the DHCP class ID for the Local Area Connection adapter to 
			TEST, type:
			ipconfig /setclassid "Local Area 
			Connection" TEST
