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Windows Networking API/Redirector Registry Settings (Windows CE 5.0)

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The following table shows the modifiable registry settings for the HKEY_LOCAL_MACHINE\Comm\Redir key.

Note   The default registry values vary depending on which Catalog items are included in your OS design. For more information, see Default Registry Settings.

Value : type Description
AllowedAuthMethods : REG_DWORD A DWORD value that is treated as a bitmask.

Bit 0: LanMan authentication method enabled or disabled.

Security Note   When this authentication method is used, a password can be subjected to attacks by unauthorized users.

Bit 1: Authentication that uses a security subsystem that is negotiated with the server. The protocol used depends on the settings of the security subsystem and the server capabilities. The negotiated authentication method can be NTLM, NTLMv2 and/or Kerberos.

Security Note   Disabling NTLM will cause authentication failure with down-level servers (such as Windows 95/98 or Windows NT) that do not support Kerberos. This will also cause failure for pass-through authentication, which is used by the Windows CE Web server and DCOM.
ClearTxtPwdAllowed : REG_DWORD Default setting is zero (0). If this value is set to 0, the Redirector refuses connection to a server that negotiates cleartext passwords.

Specifies if a cleartext password is accepted.

Security Note   Setting this value to accept cleartext passwords allows anyone listening on the network to view passwords.
DefaultDomain : REG_SZ Default setting is NULL. If this value is set to NULL, operations that require a default domain will fail.

Specifies a default domain for a NTLM security service provider to use for authentication.
DefaultDomainPDC : REG_SZ Optionally specifies a primary domain controller for the default domain.
FindCacheMaxSize : REG_DWORD Default setting is 8192. A value of zero (0) disables caching.

Specifies the maximum memory to use for find caching.
RecvBufSize : REG_DWORD Default setting is 4096.

Specifies the size of the receiving buffer.
RegisterFSRoot : REG_DWORD Default setting is 0, which does not expose the \NETWORK directory for mapped resources.

Enables a run-time image to expose the \NETWORK directory.
ResourceExpiryInt : REG_DWORD Default setting is 600.

Specifies the number of seconds before releasing unused resources.

Note   Because processing is performed on a periodic cleanup thread, it can take up to 60 seconds in addition to the specified time between the time that the file is closed to the time that the memory is released.
ServerTimoutMs : REG_DWORD Default setting is 10000. You can double this value for slow interfaces, such as dial-up.

Specifies the number of milliseconds to wait for SMB responses.
SmbSignature : REG_DWORD Default setting is 1.

A value of zero (0) means that SMB signatures are not used.

A value of 1 means that SMB signatures are used if the server requires it.

A value of 2 means that SMB signatures are used if the server supports it.

Specifies SMB signing when communicating with the server. With Windows 2003 Server, SMB signing is required by default if the server is a domain controller.

**Note   **If settings change, the device must be warm booted before they take effect. Exercise caution when changing default values — this can affect system performance or the Redirector operation.

See Also

Windows Networking API/Redirector | Accessing Remote File Systems | Managing Network Connections with WNet | Windows Networking API/Redirector Security | Windows Networking API/Redirector Functions | Windows Networking API/Redirector Structures

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