DOCUMENT:Q281729 13-JUN-2001 [sna] TITLE :"CoCreateInstance Failed" Error in SNA Server/HIS 2000 Manager PRODUCT :Microsoft SNA Server PROD/VER::3.0 SP2,3.0 SP3,3.0 SP4,4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4 OPER/SYS: KEYWORDS:kbDSupport kbsna300sp2 kbsna300sp3 kbsna300sp4 sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 3.0 SP2, 3.0 SP3, 3.0 SP4, 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4 - Microsoft Host Integration Server 2000 ------------------------------------------------------------------------------- SYMPTOMS ======== When you are using SNA Server and Host Integration Server 2000 Manager, you may receive the following error message when you attempt to expand the Microsoft SNA Manager tree: CoCreateInstance failed (There may also be other scenarios in which this error occurs.) After you click OK, the Manager closes. If Dr. Watson was configured as the default debugger, a Drwtsn32.log file is created. The following is an example of a Dr. Watson file that was created in a scenario in which Host Integration Server 2000 was installed on a Windows 2000 Server. The Drwtsn32.log file indicates that an application exception occurred in MMC.exe in function CSnaOleObj::DoVerb: Application exception occurred: App: mmc.exe (pid=) When: 10/25/2000 @ 11:13:48.022 Exception number: c0000005 (access violation) . [data omitted] . State Dump for Thread Id 0xab8 eax=00000000 ebx=00311518 ecx=00be2500 edx=00000000 esi=00000000 edi=00000112 eip=6780d68f esp=0006f7e4 ebp=0006f814 iopl=0 nv up ei pl nz na pe nc cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000202 function: CSnaOleObj::DoVerb 6780d680 8b542408 mov edx,[esp+0x8] ss:0088cdbb=???????? 6780d684 8b8190000000 mov eax,[ecx+0x90] ds:00be2590=00000000 6780d68a 52 push edx 6780d68b 8b542408 mov edx,[esp+0x8] ss:0088cdbb=???????? FAULT ->6780d68f 8b08 mov ecx,[eax] ds:00000000=???????? 6780d691 52 push edx 6780d692 50 push eax 6780d693 ff5158 call dword ptr [ecx+0x58] ds:013ffad6=???????? 6780d696 c20800 ret 0x8 6780d699 90 nop 6780d69a 90 nop 6780d69b 90 nop 6780d69c 90 nop 6780d69d 90 nop 6780d69e 90 nop 6780d69f 90 nop CAUSE ===== The SNA Server/Host Integration Server 2000 Web Client was installed on a computer that already had SNA Server or Host Integration Server 2000 installed on it. When you use a Web browser to install the Web Client, you are warned that you cannot install over an existing client/server installation. For additional information, click the article number below to view the article in the Microsoft Knowledge Base: Q280740 Issues Surrounding the SNA Server/HIS 2000 Web Client However, if you were viewing the Web Client files from My Computer or Windows Explorer and inadvertently ran the 3270full.htm or 5250full.htm file, the Web Client installation would have proceeded without warning. RESOLUTION ========== Use the following procedure to resolve this problem: 1. Close the Manager and stop the SNABase service. 2. Use the Add/Remove utility in Control Panel to remove the Web client. 3. Rerun the SNA Server/Host Integration Server 2000 Setup and select the reinstall option. 4. Restart the computer. 5. Go back into SNA Server/Host Integration Server 2000 Manager and test. Additional query words: ====================================================================== Keywords : kbDSupport kbsna300sp2 kbsna300sp3 kbsna300sp4 sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 Technology : kbAudDeveloper kbSNAServSearch kbHostIntegServ2000 kbSNAServ400 kbSNAServ300SP3 kbSNAServ400SP1 kbSNAServ400SP2 kbSNAServ400SP3 kbSNAServ400SP4 kbSNAServ300SP2 kbSNAServ300SP4 Version : :3.0 SP2,3.0 SP3,3.0 SP4,4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4 ============================================================================= 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.