Microsoft KB Archive/50593

= Using OS/2 LAN Manager Alerts =

Article ID: 50593

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft LAN Manager 1.0
 * Microsoft LAN Manager 1.1
 * Microsoft LAN Manager 2.0 Standard Edition
 * Microsoft LAN Manager 2.1 Standard Edition
 * Microsoft LAN Manager 2.1a
 * Microsoft LAN Manager 2.2 Standard Edition

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This article was previously published under Q50593



SUMMARY
This article describes the use of OS/2 LAN Manager alerts.



MORE INFORMATION
Alerts can be a confusing subject. First, alerts function locally, not across the network. When a NetAlertStart is issued, an entry in a workstation memory page is created. There are no entries made to the NetBios table when an alert is registered.

The source of most of the confusion is a server-level service called Alerter. This function does a number of NetAlertStarts for the alerts it will monitor (admin, print, user). When an alert is generated on the server, the alerter service receives the local message in the mailslot associated with the alert. Based on the alert type, the information is reformatted as a message and transmitted via the NetMessageBufferSend call.

The Netpopup system is sort of a mirror image of the Alerter system. Netpopup registers for MESSAGE alerts. When the Messenger service receives a message, it raises the message alert and thus transfers the information to the Netpopup subsystem.

In the Software/Data Library is a file named ALERTS that contains two source programs, ALRTMON.C and ALRTRAIS.C. ALRTMON.C establishes an alert monitor and ALRTRAIS.C raises an alert.

You can find ALERTS.EXE, a self-extracting file, on the following services:


 * Microsoft's World Wide Web Site on the Internet On the www.microsoft.com home page, click the Support icon. Click Knowledge Base, and select the product. Enter kbfile ALERTS.EXE, and click GO! Open the article, and click the button to download the file.
 * Internet (anonymous FTP) ftp ftp.microsoft.com Change to the Softlib/Mslfiles folder. Get ALERTS.EXE
 * Microsoft Download Service (MSDL) Dial (425) 936-6735 to connect to MSDL Download ALERTS.EXE

For additional information about downloading, please see the following article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Keywords: kbfile kbnetwork KB50593

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