Remote Assistance invitation file does not contain correct port number (307711)


The information in this article applies to:

  • Microsoft Windows XP Professional
This article was previously published under Q307711

SYMPTOMS

Remote Assistance may not insert the correct port number in the invitation file.

CAUSE

This behavior can occur after the listening port that Remote Desktop uses is changed. When Remote Assistance creates the invitation file, the correct port number is not updated from the registry.

RESOLUTION

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

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

You must have Windows XP with Service Pack 1 (SP1) or Windows XP with Service Pack 2 (SP2) installed before you apply this hotfix.

Restart requirement

You must restart the computer after you apply this hotfix.

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 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.
Windows XP Professional, x86-based versions with Service Pack 1
File nameFile versionFile sizeDateTimePlatformSP requirement
Cfgbkend.dll5.1.2600.168432,76811-May-200506:40x86SP1
Pchsvc.dll5.1.2600.168430,72011-May-200506:40x86SP1
Racpldlg.dll5.1.2600.168439,42411-May-200506:40x86SP1
Regapi.dll5.1.2600.168444,54411-May-200506:40x86SP1
Safrslv.dll5.1.2600.168441,47211-May-200506:40x86SP1
Sessmgr.exe5.1.2600.1684131,07211-May-200500:11x86SP1
Termsrv.dll5.1.2600.1684200,19211-May-200506:40x86SP1
Tscfgwmi.dll5.1.2600.168488,06411-May-200506:40x86SP1

Windows XP Professional, x86-based versions with Service Pack 2
File nameFile versionFile sizeDateTimePlatform
Sessmgr.exe5.1.2600.2674141,31210-May-200523:53x86

WORKAROUND

To work around this behavior, use any of the following methods.
  • Use Windows Messenger to establish the Remote Assistance session. This method will often succeed because of the reverse connection method that Windows Messenger uses. For more information about using Windows Messenger for Remote Assistance, click the following article number to view the article in the Microsoft Knowledge Base:

    306556 How to obtain remote assistance using Windows Messenger

  • Edit the Remote Assistance invitation file to reflect the correct port number that Remote Assistance is using:
    1. Create a new invitation, and then save the invitation as a file.
    2. Open the file by using Notepad or another text editor.
    3. Find the "RCTICKET=" section. Note that this section looks similar to the following section

      RCTICKET="65538,1,10.10.10.1:3389;user name.domain name.com:3389

      where 10.10.10.1 is the IP address, user name.domain name.com is the fully qualified domain name or computer name, and 3389 is the port number.
    4. Change the port number from 3389 to the port that Remote Desktop has been configured to use.
    5. Save the file.
    6. Send the invitation to the recipient.

STATUS

This behavior is by design.

MORE INFORMATION

For more information about how to change the listening port for Remote Desktop, click the following article number to view the article in the Microsoft Knowledge Base:

306759 How to change the listening port for Remote Desktop

Note that the listening port for Remote Desktop is also used by Remote Assistance in establishing connections.
Modification Type:MajorLast Reviewed:2/10/2006
Keywords:kbHotfixServer kbQFE kbprb KB307711
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