DOCUMENT:Q170776 13-JUN-2001 [sna] TITLE :TP_STARTED Stops Responding If NT App Opens More Than 256 TP PRODUCT :Microsoft SNA Server PROD/VER:WINDOWS:2.11,3.0 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 2.11, 3.0 ------------------------------------------------------------------------------- SYMPTOMS ======== After opening more than 256 transaction programs from a single Windows NT application, a TP_STARTED request may stop responding. CAUSE ===== The internal APPC callback function for the get_server_list and get_default_lu's remote procedure calls (RPCs) assume that SNADMOD will return only an eight-bit TP control block index. However, if the application has already opened more than 256 transaction programs, the SNADMOD could return a larger value, causing the APPC interface to fail to respond to the TP_STARTED request. STATUS ====== Microsoft has confirmed this to be a problem in SNA Server versions 2.11 and 3.0. This problem was corrected in the latest SNA Server version 3.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K MORE INFORMATION ================ The updated module is \system\Wappc32.dll. Additional query words: idea ====================================================================== Keywords : kbnetwork Technology : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ211 Version : WINDOWS:2.11,3.0 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.