How to Disable the "Logon Using Dial-Up Networking" Option

• Microsoft Windows NT Server version 4.0
• Microsoft Windows NT Workstation version 4.0

SUMMARY

IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

This article explains how to disable the checkbox for "Logon Using Dial-Up Networking" at the logon prompt on your Windows NT computer. This option normally is available on the logon dialog box and allows you to dial into your logon server for authentication of your user account.

MORE INFORMATION

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

To configure this option so that it is unavailable, use the following steps to edit the registry:

1. Start Registry Editor (Regedt32.exe), and select the following subkey:
   
   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion
   \Winlogon
   
   NOTE: The above registry key is one path; it has been wrapped for readability.



2. From the Edit menu, click Add Value, and type the following information:
   
   Value Name: RASDisable
   Data Type: REG_SZ
   Value: 1

Keywords :
Version : WinNT:4.0
Platform : winnt
Issue type : kbinfo