A Remote Desktop session is disconnected without warning if a session reconnect request does not complete as expected on a Windows Server 2003-based computer

When you use a Citrix ICA Client to connect to a Microsoft Windows Server 2003-based computer that is running Citrix MetaFrame Presentation Server, if the Citrix session is disconnected, a reconnect request may not complete as expected. The Remote Desktop session may then be disconnected without warning.

This problem may occur if the Citrix ICA Client tries to reconnect to the Citrix MetaFrame Presentation Server by using a different color depth than the color depth that was used during the original session. For example, if you follow these steps, the session is disconnected:

1. You use the Citrix ICA Client to connect to the Citrix MetaFrame Presentation Server, and you use the High Color (16 bit) color depth.
2. You disconnect from the session.
3. You change the color depth to 256 Colors.
4. You try to reconnect to the same Citrix MetaFrame Presentation Server session as the same user.

When you follow these steps, the Citrix session does not reconnect. Because the Citrix session does not reconnect, the Remote Desktop session is disconnected without warning.

Hotfix information

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 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 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.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix because the Kernel32.dll file is replaced.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix 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.

Windows Server 2003, 32-bit versions

Windows Server 2003, 64-Bit Enterprise Edition

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

For additional information, click the following article number to view the article in the Microsoft Knowledge Base: The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.