Microsoft KB Archive/836529

= Telnet sessions do not receive the escape character =

Article ID: 836529

Article Last Modified on 11/15/2007

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APPLIES TO


 * Microsoft Windows Services for UNIX 3.5
 * Microsoft Windows Services for UNIX 3.0 Standard Edition
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows XP Professional

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SYMPTOMS
If a Telnet client connects with a terminal type other than NTVT terminal type, escape characters are not received by applications that are running in a Telnet session. For example, escape characters are not received if a Telnet client connects with a terminal that is VT52 type, VT100 type, or ANSI type.

Note This problem does not occur with Telnet clients that support the NTVT terminal type. Windows Telnet clients work as expected.



CAUSE
The escape character is passed to the Telnet session as an enhanced key. However, because the escape character is not an enhanced key, it is not considered to be valid and is discarded.



Windows XP
To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389 How to obtain the latest Windows XP service pack



Hotfix information
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

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart your computer after you apply this hotfix.

File information
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.



WORKAROUND
For Windows Telnet clients, you can use the following command to set the terminal type to VTNT:

telnet -t vtnt

For more information, see the Telnet Client documentation.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows XP Service Pack 2.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: ESC

Keywords: kbhotfixserver kbqfe kbqfe kbfix kbbug KB836529

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