TipHKCU\Software\Policies\Microsoft\Windows\
The Network Connections subkey contains entries that store Group Policy settings for Network and Dial-up Connections. The entries in this subkey are written and maintained by Group Policy, and are read and interpreted by the Network and Dial-up Connections program.
This subkey in HKEY_CURRENT_USER stores policy-related entries that are configured separately for each user. There is also a Software\Policies\Microsoft\Windows\Network Connections subkey in HKEY_LOCAL_MACHINE that stores entries related to policies which apply to all users of this computer.
Tip
For detailed information about particular Group Policy settings, see the Group Policy Reference (Gp.chm) on the Windows 2000 Resource Kit companion CD.
For general information about Group Policy, see Group Policy in Windows 2000 Help.
To see a table associating policies with their corresponding registry entries, see the Group Policy Reference Table.