DOCUMENT:Q139356 13-JUN-2001 [sna] TITLE :TN3270 Server Service Fails to Start Automatically PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:2.11 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, version 2.11, on platform(s): - the operating system: Microsoft Windows NT ------------------------------------------------------------------------------- SYMPTOMS ======== When configuring the TN3270 Server service for automatic startup (within the Services application in Control Panel), the TN3270 service intermittently fails to start when Windows NT rebooted. CAUSE ===== The TN3270 Server service requires that the SnaBase service has already been started. However, the TN3270 Setup program does not indicate that SnaBase is a dependent service within the TN3270 service entry in the Windows NT registry. While the SnaBase service is dynamically started if an application attempts to use the SNA API client interfaces (such as, when TN3270 is started), dynamic startup may not succeed in all cases when Windows NT is rebooted. RESOLUTION ========== To resolve this problem, run Registry Editor (REGEDT32.EXE). WARNING: Using the Registry Editor incorrectly can cause serious, system- wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of the Registry Editor can be solved. Use this tool at your own risk. From the HKEY_LOCAL_MACHINE subtree, go to the following key: /SYSTEM/CurrentControlSet/Services/TN3270 Add the following entry to the TN3270 Server registry key: DependOnService: REG_MULTI_SZ: Tcpip SnaBase NOTE: This problem is fixed in an update to the TN3270 Server SETUP.INF file which automatically adds the above entry. STATUS ====== Microsoft has confirmed this to be a problem in SNA Server for Windows NT. This problem was corrected in the latest SNA Server for Windows NT, 2.11 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K Additional query words: prodsna 2.11 ====================================================================== Keywords : Technology : kbAudDeveloper kbSNAServSearch Version : WINDOWS:2.11 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.