When you use a smart card to log on to a Microsoft Windows XP-based computer, and you lock the computer, Windows prompts you to press CTRL+ALT+DEL to unlock the computer.Note
In a smart card environment, you may want Windows to prompt the user to reinsert the smart card to unlock the computer.
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.
You must have Microsoft Windows XP Service Pack 2 (SP2) installed to install this hotfix.
For additional information about the latest Windows XP service pack, click the following article number to view the article in the Microsoft Knowledge Base:
How to obtain the latest Windows XP service pack
You must restart your computer after you apply this hotfix.
Hotfix replacement information
This hotfix is not replaced by any later hotfix.
This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
How to back up and restore the registry in Windows
To enable this hotfix, follow these steps:
- Click Start, click Run, type regedit, and then click OK.
- Locate and then click the following registry subkey:
- With the registry subkey from step 2 selected, on the Edit menu, point to New, and then click DWORD Value.
- Type AltSCMessages, and then press ENTER.
- Right-click AltSCMessages, and then click Modify.
- In the Value data box, type 1, and then click OK.
- Quit Registry Editor.
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.
Date Time Version Size File name
20-Dec-2004 17:49 5.1.2600.2586 995,840 Msgina.dll
18-Dec-2004 22:07 5.1.2600.2586 2,048 Xpsp3res.dll
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.
The new version of the file Msgina.dll that is installed by this hotfix cannot determine whether a smart card is in the smart card reader. The file can only determine whether a smart card reader is attached to the computer.
If a smart card reader is attached and you are logging on for the first time, you receive the following message at the Welcome screen: If a smart card reader is attached and the computer is locked, you receive the following message: If a smart card reader is not attached and you are logging on for the first time, you receive the following message: If a smart card reader is not attached and the computer is locked, you receive the following message:
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
Description of the standard terminology that is used to describe Microsoft software updates