HP-UX SNAplus2 R7 Administration Guide

Managing SNAplus2 Client/Server Systems
Managing Win16 Clients
• 3270 Emulator Interface Specification
For more information about Windows SNA APIs, see the documentation provided with Microsoft Host Integration
Server.
SNA network information, and other information required by Win16 clients, is held in the
sna.ini file.
On a Win16 client, the component that handles access to SNAplus2 servers is the network access process (NAP).
The NAP must be enabled before you can use SNAplus2 applications or emulation programs on the client. For
more information, see Section 11.3.1,
Enabling a Win16 Client.
When the NAP is enabled, the client contacts a server running SNAplus2 over the TCP/IP network in order to
access SNAplus2 features.
The operation of the client is also controlled by the following files:
sna.ini
Win16 client initialization file. This file contains information about the following:
• Configuration information specific to Win16 clients
• Servers that the client can access
• Logging and tracing options for applications running on the client
• Additional options for CPI-C and CSV applications running on the client
For more information about this file, see Section 11.3.3, Win16 Client Initialization File (sna.ini).
sna_tps.ini
Win16 client invokable TP data file. This file contains information about invokable TPs (APPC or CPI-C)
that can run on the client; it is equivalent to the sna_tps file on a computer running the HP-UX operating
system, as described in Section 7.4, Defining TPs.
For more information about this file, see Appendix C, Configuring an Invokable TP from the Command Line.
11.3.1 Enabling a Win16 Client
To enable the SNAplus2 software on a Win16 client, either double-click on the Windows NAP icon, or use the
normal Windows “File Run” mechanisms to run wnap.exe. The client then uses the information in the sna.ini
file, described in Section 11.3.3, Win16 Client Initialization File (sna.ini), to locate a server running SNAplus2.
If you want to enable the NAP automatically when the Windows system is started, you can include the Windows
NAP icon in the “Startup” group, or list it in the [windows] section of the win.ini file as a program to be
started automatically.
11.3.2 Disabling SNAplus2 for a Win16 Client
Before disabling the NAP, ensure that all SNAplus2 applications (3270 and 5250 emulation programs or applications
using the SNAplus2 APIs) on the Win16 client have been stopped.
To disable the NAP, click on the Windows NAP icon and choose
Close. If any SNAplus2 applications are running,
the
Close option is not selectable; if you are sure you want to disable the NAP, stop the relevant applications before
retrying.
11.3.3 Win16 Client Initialization File (sna.ini)
For Windows 3.1 or Windows for Workgroups 3.11, configuration information is kept in the sna.ini file.
The Win16 client initialization file, sna.ini, contains SNA network information (similar to the information held
in the client network data file on HP-UX clients). This file also contains some additional configuration information
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