Knowledge Base

FIX: You may intermittently receive an "Internal network library" error message, or a custom Windows service may suddenly stop when you use the Host Integration Server 2004 Managed Provider for DB2

Article ID: 896494

Article Last Modified on 12/4/2007

APPLIES TO

Microsoft Host Integration Server 2004 Standard Edition

SYMPTOMS

You may experience one or both of the following symptoms:

A custom Windows service that calls the Microsoft Host Integration Server 2004 Managed Provider for DB2 suddenly stops without an error message or entries in the event log.
When you use the Host Integration Server 2004 Managed Provider for DB2 in a client application, you intermittently receive an "Internal network library" error message.

CAUSE

This problem occurs because intermittent heap corruption occurs. This corruption is caused by a timing issue in the Host Integration Server 2004 Managed Provider for DB2.

RESOLUTION

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version     Size     File name
   ----------------------------------------------------------------------------------
   19-Apr-2005  20:57  6.0.1948.0  487,424  Db2oledb.dll     
   19-Apr-2005  21:02               24,516  Db2oledb.h
   19-Apr-2005  20:57  6.0.1948.0   44,032  Ddmstr.dll 
   19-Apr-2005  20:57  6.0.1948.0  336,384  Drdaresync.exe   
   19-Apr-2005  20:57  6.0.1948.0  114,688  Microsoft.hostintegration.msdb2client.dll  
   19-Apr-2005  20:57  6.0.1948.0   71,680  Mseidb2c.dll     
   19-Apr-2005  20:57  6.0.1948.0  435,200  Mseidb2d.dll     
   19-Apr-2005  20:58  6.0.1948.0  692,736  Mseidrda.dll

Note Because of file dependencies, the most recent fix that contains these files may also contain additional files.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

When you use the Host Integration Server 2004 Managed Provider for DB2 with a Microsoft ASP.NET client application, you receive an error message most frequently when the following conditions are true, in the order in which they are presented:

You successfully run the ASP.NET client application several times.
You wait approximately 3 minutes.
You try to run the ASP.NET client application again.

You receive the following error message from the Host Integration Server 2004 Managed Provider for DB2:

Exception Information:
Exception Type: Microsoft.HostIntegration.MsDb2Client.MsDb2Exception
SqlState: HY000
SqlCode: -1
Message: Internal network library error.
Source: Microsoft.HostIntegration.MsDb2Client
StackTrace Information:
at Microsoft.HostIntegration.MsDb2Client.DRDAAR.GetDiagRec(IntPtr requesterHandle, Int16 recNum, String& sqlState, Int32& sqlCode, String& errMsg)
at Microsoft.HostIntegration.MsDb2Client.MsDb2Exception..ctor(DRDAAR drdaAr, IntPtr requesterHandle)
at Microsoft.HostIntegration.MsDb2Client.DRDAAR.GetConnection(ConnectInfo[] connInfo, Boolean usePooling)
at Microsoft.HostIntegration.MsDb2Client.MsDb2Connection.Open()

Additional query words: DB2Oledb HIS2004 Netlib GC

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB896494

Microsoft KB Archive/896494

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