Hi Alvaro:
    There are two ways can be used to achieve your goal.
   1. the Win32_NetworkAdapterConfiguration.EnableDHCP in WMI class can be
used to configure the Adapter to use DHCP. If you know WMI, you can go here
for more
information:http://msdn.microsoft.com/library/default.asp?url=/library/en-us
/wmisdk/wmi/win32_networkadapterconfiguration.asp
   2. you can modify the registry programmatically to achieve the goal:
System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\{Adapter}\
Parameters\Tcpip]
Value Name: EnableDHCP
Data Type: REG_BINARY (Binary Value)
1--Enable
0--Disable

Best regards,

Rhett Gong [MSFT]
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security

This posting is provided "AS IS" with no warranties and confers no rights.

Hi Alvaro:
   I think no direct class in C# can be used to configure the adapter to
use DHCP.

Best regards,

Rhett Gong [MSFT]
Microsoft Online Partner Support
Get Secure! - www.microsoft.com/security

This posting is provided "AS IS" with no warranties and confers no rights.