Managing SNAplus2 Clients

Managing Win16 Clients

Managing Win16 Clients

SNAplus2 enables machines running Microsoft Windows 3.1 and Windows for Workgroups 3.11 to act as clients in the SNAplus2 domain. The SNAplus2 client software includes API libraries that are fully compatible with Microsoft SNA Server and the Windows Open Systems Architecture (WOSA), enabling applications written for SNA Server to run unchanged on the SNAplus2 Win16 client.

SNAplus2 supports the following WOSA APIs:

Windows APPC

Windows CPI-C

Windows LUA

Windows CSV

3270 Emulator Interface Specification

For more information about Windows SNA APIs, see the documentation provided with Microsoft SNA 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 “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. You can optionally set up SNAplus2 servers to enforce password checking for Win16 clients, so that the client user must enter the correct password when enabling the NAP in order to gain access to the server. For more information, see “Win16 Client Security”.

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

Chapter 11

275