Microsoft KB Archive/279003

= Understanding and Configuring the SNA Server/HIS 2000 Web Client =

Article ID: 279003

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft Host Integration Server 2000 Standard Edition
 * Microsoft SNA Server 3.0 Service Pack 2
 * Microsoft SNA Server 3.0 Service Pack 3
 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 4.0 Service Pack 1
 * Microsoft SNA Server 4.0 Service Pack 2
 * Microsoft SNA Server 4.0 Service Pack 3
 * Microsoft SNA Server 4.0 Service Pack 4

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This article was previously published under Q279003



SUMMARY
The SNA Server/Host Integration Server (HIS) 2000 Web Client started shipping with SNA Server 3.0 Service Pack 2 (SP2). The Web Client offers the following benefits:
 * Administrators can control/configure the 3270/5250 Web Client settings that are used for session access.
 * Administrators can update the Web Client cabinet (*.cab) files from one location. The next time a Web Client accesses the Web page, Administrators receive the latest updated files.
 * Users can install the Web Client by way of a Web browser, with the configured settings that are already set by the Administrator.
 * Users can initiate a 3270/5250 session by way of a Web browser.



MORE INFORMATION
It is important to understand that the Web Client does not run in the context of the browser; rather, the Web Client is a means of installing the necessary files for session access. Though a session can be kicked off (spawned) by way of a Web browser, each session runs in its own separate process.

For customers who want the ability to run sessions from within a Web browser (true HTML conversion of the data stream), a 3rd-party solution is necessary from such vendors as IBM, Attachmate, and NetManage.

Requirements

 * The Server must be running Microsoft Windows NT 4.0 or later with Microsoft Internet Information Server (IIS) 3.0 or later.
 * The Web Client runs on any client that the SNA Server/HIS 2000 end-user client currently supports. Microsoft Windows 95, Microsoft Windows 98, Microsoft Windows Millennium (Me), Microsoft Windows NT Workstation, and Microsoft Windows 2000 Professional are all supported.
 * The Web Client requires that Microsoft Internet Explorer 3.01 or later be installed on the client computer to install the necessary files.
 * The Web Client Setup program must be run on a TCP/IP network for Web browser-to-Web server and Web Client to SNA Server/HIS 2000 connectivity.

Before a user can install the Web Client, an Administrator must first make sure the following steps are completed/tested:  Copy the contents of the \Client\Web folder from the SNA Server/HIS 2000 CD-ROM to the target folder on your Web server. If you are using IIS, the target folder might be %SystemDrive%\Inetpub\Wwwroot\Webclient.

The Wwwroot folder is the default location from which IIS publishes Web pages. In this example, the Webclient folder is created by an Administrator. On the Web server, edit the appropriate *.htm files, which now reside in the \Webclient folder. For &quot;full&quot; installations (which include the 3270/5250 emulators), edit the 3270full.htm and/or 5250full.htm files.

These files allow an Administrator to configure such parameters as sponsor server, local LU, remote LU, firewall entry, and so on. For example, if you want to use the 5250 emulator to get a sponsor connection to a server that is named MAINSNA with a Local LU name of SNALOCAL and a Remote LU name of BIGBLUE, you would edit the following lines in the 5250full.htm file to resemble the following:

snactrl.SetSponsors &quot;MAINSNA&quot;

snactrl.Set5250LocalLU &quot;SNALOCAL&quot;

snactrl.Set5250RemoteLU &quot;BIGBLUE&quot;

NOTE: Although it is possible to configure the &quot;minimum&quot; installation files (5250min.htm and 3270min.htm), the HTML file that is provided with SNA Server/HIS 2000 allows for installing only the &quot;full&quot; client. To use the &quot;minimum&quot; installation files, please review the product Help documentation. On a client computer, point your Web browser to the following URL:

http:// /webclient/default.htm

 Once you are connected to this URL, your Web page will present you with three buttons to select:

 Click button to connect to mainframe. Click button to connect to AS/400. Click button to install the End-User Client.</li></ul>

Assuming that both the mainframe (3270) and AS/400 (5250) *full.htm files were configured properly, once you click the button in question, the Web Client files will be downloaded to the user's local hard drive and stored in the Winroot\Sna95\System folder. After this process is completed, the 3270 or 5250 emulator will open in a separate process and be ready for use.

The button to install the end-user client is used for installing the SNA client files, but not the 3270/5250 emulator. A 3rd-party emulator can be installed at a later time to provide for session access.</li></ol>

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