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Configuration Parameters

The NetBIOS Security TSR

If you are using a DOS RunTime (RTI/RTP or RTI386/RTP386) in a Windows environment, start the RunTime using a batch file. In the first line of the batch file load NIAKNETB.COM. Follow that with the command line to start the RunTime. The final line of the batch file should unload NIAKNETB.COM, using the command NIAKNETB /U.

The ability to unload NIAKNETB.COM was an enhancement to Release 4.22. If NIAKNETB.COM is not unloaded, a warning message will be displayed when the DOS window is closed. This error can be safely ignored if needed.

A small status window appears at the top of the display with the caption "NiakNetW Monitor - Establishing NETBIOS interface" when the RunTime is checking for NetBIOS authorization (whether using NIAKNETW.DLL or NIAKNETB.COM). This feature was added because some NetBIOS operations effectively stop Windows for a number of seconds. The status window is displayed to indicate that the behavior is temporary, and the workstation is not locked.

NOTE: The Windows RunTime dynamically launches a windows version of NIAKNETB (NIAKNETW.DLL) as required.

The NIAKWA_RUNTIME Environment Variable

The NIAKWA_RUNTIME environment variable is used to specify an alternate drive/directory in which the NPL system files are located. When installing a new RunTime, in most cases this environment variable is not required. Setting NIAKWA_RUNTIME is required if the RunTime executables are stored locally (for performance reasons) but the RunTime security is installed on the network. In addition, NIAKWA_RUNTIME must be set in the event two NPL Gold Keys are maintained on the same system.

NOTE: If NIAKWA_RUNTIME is not set, NPL first searches for its startup files in the currently selected directory and then defaults to searching a root level BASIC2C directory.

To establish the NIAKWA_RUNTIME directory, use the DOS SET command. This is best placed in the AUTOEXEC.BAT file as shown below:


This instructs the RunTime to search the \NPL directory on the D drive for NPL system files regardless of the current drive and directory selected. If the NIAKWA_RUNTIME variable is not set, NPL detects the directory from which the RunTime was executed from and uses this path for locating NPL system files.

For example:


The RunTime detects the execution directory as "G:\NPL" and looks there for any other NPL system files.

NOTE: In Windows NT 4.0, 2000, and XP Professional, NIAKWA_RUNTIME can also be set in the Advanced Properties of the My Computer or System icon. There is a great potential for confusion if NIAKWA_RUNTIME is set to one value here AND set to another in the AUTOEXEC.BAT file. Standard trouble shooting practices should involve checking BOTH locations.