Article ID: 103004
Article Last Modified on 10/31/2006
APPLIES TO
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
This article was previously published under Q103004
SUMMARY
The article contains Registry entries for network services, Part 8. These subgroups are included.
- Replicator service
Remote Procedure Call (RPC) and RPCLocator software
- ClientProtocols and ServiceProtocols entries for RPC - NameService entries for RPC
For a listing of the contents of network services entries articles 1-8, see "Network Services Entries, Part 1."
Replicator Service Entries
The Registry path that contains entries for the Replicator service is the following:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
\Replicator\Parameters
CrashDir REG_SZ First-Level Directory Name
This item is temporarily recorded in the Registry by the Replicator
service. If it remains after a system repair, you can delete this
entry using Registry Editor.
ExportList REG_SZ List
Lists an unlimited number of servers or domains that receive
notices when the export directory is updated. These servers
subsequently replicate from the export server. If no List value is
specified, the export server sends a notice to its domain. Separate
multiple List names with a semicolon (;). This value is ignored if
the value of Replicate is 2 (Import).
Do not use the UNC name when you specify a computer name; that is,
do not include two backslashes (\\) at the beginning of the name.
Use the Replicator controls in Server Manager or the Server icon in
Control Panel to set this value. Default: none.
ExportPath REG_SZ or REG_EXPAND_SZ Pathname
Specifies the export path. All files to be replicated must be in a
subdirectory of the export directory. This value is ignored if the
value of Replicate is set to 2 (Import). Use the Replicator
controls in Server Manager or the Server icon in Control Panel to
set this value, which cannot be a UNC name.
Default: %SystemRoot%\System32\Repl\Export.
GuardTime REG_DWORD 0 to one-half of Interval minutes
Sets the number of minutes an export directory must be stable (no
changes to any files) before import servers can replicate its
files. This option applies only to directories with tree integrity.
Default: 2 minutes.
ImportList REG_SZ List
Lists an unlimited number of servers or domains that receive
notices when the import directory is updated. These servers
subsequently replicate from the import server. If no List value is
specified, updates come from the import server's domain. Separate
multiple List names with a semicolon (;). This value is ignored if
the value of Replicate is 1 (Export).
Do not use the UNC name when you specify a computer name; that is,
do not include two backslashes (\\) at the beginning of the name.
Use the Replicator controls in Server Manager or the Server icon in
Control Panel to set this value.
ImportPath REG_SZ or REG_EXPAND_SZ Pathname
Specifies the path on the import server to receive replicas from
the export servers. This value is ignored if the value of Replicate
is 1 (Export). Use the Replicator controls in Server Manager or the
Server icon in Control Panel to set this value, which cannot be a
UNC name. Default: %SystemRoot%\System32\Repl\Import.
Interval REG_DWORD 1 to 60 minutes
Sets how often an export server checks the replicated directories
for changes. This option is ignored on import servers. Default: 5
minutes.
PulseConcurrency REG_DWORD 1 to 10 cycles
Specifies how often the export server repeats sending the last
update notice. These repeat notices are sent even when no changes
have occurred, so that import servers that missed the original
update notice can receive the notice. The server waits the
equivalent of (Pulse * Interval) minutes before sending each repeat
notice. Default: 3.
Random REG_DWORD 1 to 120 seconds
Specifies the maximum time that the import servers can wait before
requesting an update. An import server uses the export server's
value of Random to generate a random number of seconds (from 0 to
the value of Random). The import server waits this long after
receiving an update notice before requesting the replica from the
export server. This prevents the export server from being
overloaded by simultaneous update requests. Default: 60.
Replicate REG_DWORD 1, 2, or 3
Specifies the Replicator action, according to the following:
Value Meaning
----------------------
1 Export-the server maintains a master tree to be
replicated.
2 Import-the server receives update notices from the export
server.
3 Both-the server is to export and import directories or
files.
Use the Replicator controls in Server Manager or the Server icon in
Control Panel to set this value. Default: 3.
The Replicator does not use the REPL.INI file as does LAN Manager
2.0. The integrity and extent values (among other items) are stored
as REG_SZ values under the Exports and Imports subkeys, which are
found under the Replicator\Parameters key. These values are used
only by the software and should be maintained only by the system.
RPC and RPCLocator Software Entries
There are no definable parameters of note in the Services subkey for Remote Procedure Call (RPC) and RPCLocator.
The important value entries governing RPC are found under the Software key. There are four subkeys: ClientProtocols, NameService, NetBIOS, and ServiceProtocols. Entries are described in this section.
ClientProtocols and ServiceProtocols Entries for RPC
The ClientProtocols subkey contains the mappings from client-side RPC protocol name to DLL name. This is the Registry path:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ClientProtocols
The default values are as follows. All data types are REG_SZ.
ncacn_np = rpcltc1.dll
ncacn_ip_tcp = rpcltc3.dll
ncacn_nb_nb = rpcltc5.dll
ncacn_nb_tcp = rpcltc5.dll
ncacn_nb_ipx = rpcltc5.dll
ncacn_spx = rpcltc6.dll
ncalrpc = ncalrpc
The ServerProtocols subkey does the same for server-side protocols in this Registry path:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\ServerProtocols
The default values are:
ncacn_np = rpclts1.dll
ncacn_ip_tcp = rpclts3.dll
ncacn_nb_nb = rpclts5.dll
ncacn_nb_tcp = rpclts5.dll
ncacn_nb_ipx = rpclts5.dll
ncacn_spx = rpclts6.dll
ncalrpc = ncalrps
These subkeys are present for all supported RPC transports, but the mappings for the ncacn_np and ncalrpc protocols are not used. For these transports, the mapping is hardcoded in the RPC run-time code.
In the naming convention for the RPC dynamic-link libraries (DLLs): RPC indicates this is an RPC DLL; LT indicates a loadable transport; C or S indicates client-side or server-side; and the number indicates which transport, where 1 = named pipes, 2 = undefined, 3 = TCP/IP, 4 = DECNet, 5 = NetBIOS, and 6 = SPX.
NOTE: On 16-bit Windows for MS-DOS systems, these entries in C:\RPCREG.DAT are a subset of this information. For 16-bit systems, we rely upon the user to give the proper LANA's to Setup. In addition, all information in the ClientProtocols section is hardcoded into the run-time, so the section will typically not be present in RPCREG.DAT. Finally, a Windows-based application running under the WOW subsystem will still reference RPCREG.DAT for its parameters, because it does not have access to the Windows NT Registry.
NameService Entries for RPC
The NameService subkey contains information used by the RPC Locator service and the client-side RPC NSI calls. This is the Registry path:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\NameService
The subkeys have the following default values when the Locator is the name service provider. All are REG_SZ data types.
DefaultSyntax = 3
Protocol = ncacn_np
NetworkAddress = \\.
ServerNetworkAddress = \\.
Endpoint = \pipe\locator
Because the Locator only listens to \pipe\locator, it is unwise to change any of the name service values when the Locator is the name service provider.
When CDS is the name service provider (via NSID), these entries have the following values. Again, all are REG_SZ data types.
DefaultSyntax = 3
Protocol = ncacn_ip_tcp
NetworkAddress = hostname.organization.edu
ServerNetworkAddress = hostname.organization.edu
Endpoint =
The value for Endpoint is intentionally left blank in this case.
For these value entries, DefaultSyntax specifies the OSF name syntax to use when RPC_C_NS_SYNTAX_DEFAULT is specified as the name service syntax to one of the name service functions. The Locator and NSID support only the value of 3. Because NSID forwards requests to CDS, it is possible that NSID actually supports other syntaxes.
Protocol, NetworkAddress, ServerNetworkAddress, and Endpoint are used by the system to construct a binding handle to the name service database and then to make an RPC call to fetch the requested binding handles.
When CDS is the provider, the NetworkAddress and ServerNetworkAddress entry values should be identical. The other entries can be changed, depending upon the requirements of the NSID implementation. For the current Digital NSID, the defaults are the best values.
NetBIOS Entries for RPC
The NetBIOS subkey describes the mapping of NetBIOS-based protocol sequences to LANA numbers. The Registry path is:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Rpc\NetBIOS
Each value has the following form:
ncacn_nb_baseindex REG_DWORD lana
In the format for these value entries, base is either nb, ipx, or tcp, and index and lana are zero-based integers. For example, a computer might have these entries:
ncacn_nb_nb0 = 0
ncacn_nb_ipx0 = 1
ncacn_nb_tcp0 = 2
In this example, IPX is on LANA 1, TCP is on LANA 2, and NetBEUI is on LANA 0. As another example, if a computer has two network adapter cards using NetBEUI, the configuration would be the following:
ncacn_nb_nb0 = 0
ncacn_nb_nb1 = 1
This information is updated by Windows NT Setup to match the installed network transports, so it should never need to be altered.
Schedule Service Entries
There are no parameters that can be added for the Schedule service in this path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
\Schedule
You use the Schedule service to submit a job such as an executable or batch file to run at a later time. You must define access controls on the Schedule key itself if you want to run in an account that is not an Administrator account.
Reference: "The Windows NT Resource Kit for Operating System Version 3.1."
Additional query words: prodnt
Keywords: kbother KB103004
