DOCUMENT:Q151997 10-JUL-2002 [winnt] TITLE :DECMON Can Cause Spoolss to Generate an Access Violation PRODUCT :Microsoft Windows NT PROD/VER::3.5,3.51 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation versions 3.5, 3.51 - Microsoft Windows NT Server versions 3.5, 3.51 ------------------------------------------------------------------------------- SYMPTOMS ======== The print service stops and a Dr. Watson Log is created. Upon further review of the Dr. Watson log (Drwtsn32.log) you may find: Application exception occurred: App: spoolss.DBG (pid=87) When: 5/9/1996 @ 16:38:2.449 Exception number: c0000005 (access violation) CAUSE ===== DECMON.DLL causes Spoolss to generate an Access Violation error. Spoolss uses many DLLs to communicate with printers, so any of those *.dll files can contain a problem. To find where the error was in the case of Decmon.dll, search for the keyword FAULT in the following stack back trace: function: wvsprintfW 77eb3ea2 83c602 add esi,0x2 77eb3ea5 85c9 test ecx,ecx 77eb3ea7 0f8e7b04ffff jle wvsprintfW+0xb2 (77ea4328) 77eb3ead ebdf jmp wvsprintfW+0x1c3 (77eb3e8e) 77eb3eaf 8345ec04 add dword ptr [ebp-0x14],0x4 ss:00a7e08e=???????? 77eb3eb3 8b45ec mov eax,[ebp-0x14] ss:00a7e08e=???????? 77eb3eb6 b9ffffffff mov ecx,0xffffffff 77eb3ebb 8b50fc mov edx,[eax-0x4] ds:0046e922=???????? 77eb3ebe 2bc0 sub eax,eax 77eb3ec0 8bfa mov edi,edx FAULT ->77eb3ec2 f2ae repne scasb es:001a0000=?? 77eb3ec4 f7d1 not ecx 77eb3ec6 49 dec ecx 77eb3ec7 837df000 cmp dword ptr [ebp-0x10],0x0 ss:00a7e08e=???????? 77eb3ecb 894df4 mov [ebp-0xc],ecx ss:00a7e08e=???????? 77eb3ece 7c0a jl wvsprintfW+0x20f (77eb3eda) 77eb3ed0 8b45f0 mov eax,[ebp-0x10] ss:00a7e08e=???????? 77eb3ed3 3bc1 cmp eax,ecx 77eb3ed5 7d03 jge wvsprintfW+0x20f (77eb3eda) 77eb3ed7 8945f4 mov [ebp-0xc],eax ss:00a7e08e=???????? 77eb3eda 8b45f4 mov eax,[ebp-0xc] ss:00a7e08e=???????? 77eb3edd 2945f8 sub [ebp-0x8],eax ss:00a7e08e=???????? *----> Stack Back Trace <----* FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name 0060f76c 775871a0 0060f780 7758cb38 0060ff5c 00650067 user32!wvsprintfW [omap] 0060ff50 7756d0bf 7758cb0c 00000037 0019ffc4 01a42ab4 decpsmon!trace MORE INFORMATION ================ In general, to find the fault and determine which *.dll causes the problems, look in the STACK BACK TRACE under Function Name. To do that you must do the following first: 1. Load the correct debug files, called SYMBOL files, to the directory where Windows NT is installed (that is, \Winnt\Symbols). Symbol files are found on the Windows NT compact disc under \Support\Debug\\Symbols. 2. Copy this directory to your Windows NT directory. If you have any Service Packs installed you will need the symbols for that Service Pack also. Symbols for Service Packs are included on the compact disc. RESOLUTION ========== To resolve this problem, install the fix mentioned below. STATUS ====== Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in the latest Windows NT 3.51 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: prodnt 3.50 3.51 ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNTWsearch kbWinNT351search kbWinNT350search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search Version : :3.5,3.51 ============================================================================= 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 2002.