You make a Winsock connection on a computer that is running Windows Server 2003. Both the client-side and the server-side applications run on this computer.
You call the recv function to receive data.
In this scenario, the recv function returns 0 bytes randomly. This returned value of 0 bytes causes data loss. However, if you immediately call the recv function again, the expected data is received successfully.
The TCP/IP protocol driver (Tcpip.sys) triggers a disconnect event randomly while the driver receives a receive request. Therefore, the data transfer process is interrupted, and the issue mentioned in the "Symptoms" section occurs.
A supported hotfix is 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 the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
To apply this hotfix, your computer must be running Windows Server 2003 Service Pack 2 (SP2).
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other previously released hotfixes.
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 item in Control Panel.
For all supported x86-based versions of Windows Server 2003 SP2
For all supported Itanium-based versions of Windows Server 2003 SP2
For all supported x64-based versions of Windows Server 2003 SP 2 and of Windows XP SP2
To work around the issue, retry the recv function from the same socket if 0 bytes is returned from the recv function.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about the recv function, visit the following Microsoft Web site: