Microsoft KB Archive/815051

= The Firewall Client Does Not Support the ConnectEx and WSARecvMsg APIs =

Article ID: 815051

Article Last Modified on 6/14/2007

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2000 Standard Edition
 * Microsoft Internet Security and Acceleration Server 2000 Service Pack 1

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SYMPTOMS
When you use the Firewall client on either Microsoft Windows XP or Microsoft Windows Server 2003, some Winsock applications may not work through ISA Server 2000. For example, Remote Procedure Call (RPC) applications that are using Winsock may not connect through ISA Server 2000. You do not see this issue with Microsoft Windows 2000 or earlier versions of Microsoft Windows when you are running the Firewall client.



CAUSE
Windows XP and Windows Server 2003 introduce new Winsock APIs to extend the capability of Winsock. Because ISA Server 2000 was released before these operating systems became available, the Firewall client does not support these new Winsock calls. The Winsock APIs in question are ConnectEx and WSARecvMsg.



RESOLUTION
Note You must install ISA Server Service Pack 1 (SP1) before you install the following hotfix. For additional information about how to obtain the latest ISA Server service pack, click the article number below to view the article in the Microsoft Knowledge Base:

313139 How to Obtain the Latest Internet Security and Acceleration Server 2000 Service Pack

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 fix has the file attributes (or later) 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 20-Apr-2003 14:12  3.0.1200.265  97,552  Wspwsp.dll This fix also applies to the French, German, Spanish, and Japanese versions of ISA Server. To install the fix, run the self-extracting file. You do not have to restart the ISA Server computer. If the computer is part of an ISA Server array, you do not have to shut down the whole array. You can still install this fix on a one-by-one basis.

Note Apply this hotfix on the ISA Server computer. This updates the Firewall client share on the ISA Server computer. To deploy the hotfix to the Firewall clients, rerun the Firewall client setup and select Repair. Note that you must use the Firewall client share (for example, \\isaserver\mspclnt\setup.exe) to do this. If you run the setup program from Add/Remove Programs in Control Panel, the Firewall client will not be updated with the new hotfix.

Alternatively, you can remove and then reinstall the Firewall client to obtain the updated version of Wspwsp.dll from the Firewall client share.

The Firewall client is updated with the hotfix automatically if the Firewall client is installed after the hotfix has been applied to the ISA Server computer.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
The hotfix in this article adds new functionality to the Firewall client to give support for the new ConnectEx and WSARecvMsg Winsock APIs. Additionally, this hotfix resolves several stability and access violation issues in the Firewall client.

Keywords: kbhotfixserver kbqfe kbqfe kbbug kbfix KB815051

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