1001 Secrets for Windows NT Registry
(Publisher: 29th Street Press)
Author(s): Tim Daniels
ISBN: 1882419685
Publication Date: 12/01/97

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Remote Access Server (RAS)

I-406 If you share phone lines with voice or fax and need to change the number of rings RAS waits before it answers the phone, change this registry parameter.

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\RasMan\Parameters
Value Name: NumberOfRings
Data Type: REG_DWORD
Value: 1 - 20; default is 1

If you try to set the value to a number greater than 20, the default value (1) is used. Restart RAS for this value to take effect. This registry entry only affects UNIMODEM devices.

I-407 From time to time it is necessary to exclude certain dial addresses from the service. Basically, changing this value lets you hide certain RAS addresses without deleting them. If your RAS dialer is set up to choose alternates when it encounters a busy signal, you can appreciate the convenience of this feature. To exclude an address, add it under the following registry value.

Hive: HKEY_CURRENT_USER
Key: Software\Microsoft\RAS Autodial\Control
Value Name: DisabledAddresses
Data Type: REG_MULTI_SZ
Value: <disabled addresses>

All addresses are case sensitive. This registry value is automatically created the first time you run AutoDial. After it is created, AutoDial does not modify it; you add the addresses you want to deactivate for the AutoDial service.

I-408 If you are experiencing a slight delay after you type your credentials in the “Connecting to” dialog box, you may have accumulated too many cached passwords. This registry entry lets you disable the caching feature.

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\RasMan\Parameters

Add this value under the Parameters key:

Value Name: DisableSavePassword
Data Type: REG_DWORD
Value: 1

Changing this value to 1 effectively clears all cached passwords and prevents RAS from caching any further phonebook entries. The default value is 0, which enables the password-caching feature. Restart your machine for these values to take effect.

I-409 Logging off closes all RAS connections. If you have a remote machine connected to your corporate LAN and multiple people use it, you might want to keep RAS connections open even when a person logs out. This registry entry keeps RAS connections even if you log out.

Hive: HKEY_LOCAL_MACHINE
Key: Software\Microsoft\Windows NT\CurrentVersion\Winlogon

Add this value under the Winlogon key:

Value Name: KeepRasConnections
Data Type: REG_SZ
Value: 1

Restart the RAS service for this change to take effect.

I-410 You can control the time your RAS server’s modem waits before it calls back and authenticates a remote user. This registry entry lets you specify a value between 1 and 255 seconds.

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\RasMan\PPP
Value Name: DefaultCallbackDelay
Data Type: REG_DWORD
Value: 12

The default is 12 seconds. Restart RAS for these values to take effect.

I-411 Are your non-Windows NT and non-Windows 95 clients having trouble connecting to your Windows NT RAS server? If you told the NT server to use clear-text authentication, but you’re still having trouble, try setting these registry parameters to help solve your problem.

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\RasMan\PPP
Value Name: ForceEncryptedData
Data Type: REG_DWORD
Value: 0

I-412 Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\RasMan\PPP
Value Name: ForceEncryptedPassword
Data Type: REG_DWORD
Value: 0

Restart Windows NT for these changes to take effect.

I-413 Do you want the “Logon Using Dialup Networking” checkbox in the logon screen to be checked by default? This registry entry tells Windows NT to use dialup networking for logon by default.

Hive: HKEY_LOCAL_MACHINE
Key: Software\Microsoft\Windows NT\CurrentVersion\Winlogon
Value Name: RASForce
Data Type: REG_SZ
Value: 1

Restart Windows NT for these changes to take effect.

I-414 VanJacobsen (VJ) compression confuses some older dial-up clients. You can’t disable VJ compression on the client, so use these entries to disable it on the server.

Hive: HKEY_LOCAL_MACHINE
Key: System\CurrentControlSet\Services\RasMan\IPCP\ Parameters

Add the following value under the Parameters key:

Value Name: RequestVJCompression
Data Type: REG_DWORD
Value: 0


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