Windows Vista does not recognize an external USB optical disc drive when you reconnect the USB optical disc drive to the computer

Article translations Article translations
Article ID: 944292 - View products that this article applies to.
Expand all | Collapse all

On This Page

SYMPTOMS

Consider the following scenario:
  • You have a Windows Vista-based computer that does not have an internal USB optical disc drive. Instead, an external USB optical disc drive is connected to the computer.
  • You run an application that calls the AcquireExclusiveAccess routine in the Imapi2.dll file to exclusively use the optical disc drive on the computer.
In this scenario, you may notice that the external USB optical disc drive is removed from the Windows Vista operating system. When you reconnect the optical disc drive to the Windows Vista-based computer, the operating system does not recognize the optical disc drive. Additionally, a yellow exclamation mark (!) may appear next to the external USB optical disc drive in Device Manager. You may receive an error that resembles the following:
Error 38 (CM_PROB_DRIVER_FAILED_PRIOR_UNLOAD)
Note The external USB optical disc drive can be displayed correctly in Device Manager after you restart the computer.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

Hotfixes and security updates that are included in SP2 for Windows Vista Service and for Windows Server 2008

For more information about the hotfixes and the security updates that are included in SP2 for Windows Vista and for Windows Server 2008, visit the following Microsoft TechNet Web site: -
http://technet.microsoft.com/en-us/library/dd335033.aspx
Note: Currently, the list of hotfixes and security updates is available only in English.

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

There are no prerequisites for installing this hotfix.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released 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 item in Control Panel.

Windows Vista, x86-based versions

Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
X86_77b9298006433c18336edc3f796d2705_31bf3856ad364e35_6.0.6000.20716_none_d01a27cd4c027d36.manifestNot applicable70007-Nov-200716:57Not applicable
X86_microsoft-windows-imapiv2-base_31bf3856ad364e35_6.0.6000.20716_none_c1a8ffdb2e9b7b40.manifestNot applicable185,71707-Nov-200716:57Not applicable
Imapi2.dll6.0.6000.20716319,48807-Nov-200707:37x86

Windows Vista, 64-bit versions

Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Amd64_0c8f32de47c5f20a6168c82a8f0fa652_31bf3856ad364e35_6.0.6000.20716_none_8f73c94120171af9.manifestNot applicable70407-Nov-200716:57Not applicable
Amd64_77b9298006433c18336edc3f796d2705_31bf3856ad364e35_6.0.6000.20716_none_2c38c351045fee6c.manifestNot applicable70207-Nov-200716:57Not applicable
Amd64_microsoft-windows-imapiv2-base_31bf3856ad364e35_6.0.6000.20716_none_1dc79b5ee6f8ec76.manifestNot applicable185,74107-Nov-200716:59Not applicable
Package_1_for_kb944292~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable1,79907-Nov-200716:57Not applicable
Package_2_for_kb944292~31bf3856ad364e35~amd64~~6.0.1.0.mumNot applicable2,01807-Nov-200716:57Not applicable
X86_microsoft-windows-imapiv2-base_31bf3856ad364e35_6.0.6000.20716_none_c1a8ffdb2e9b7b40.manifestNot applicable185,71707-Nov-200716:59Not applicable
Imapi2.dll6.0.6000.20716405,50407-Nov-200705:28x64
Imapi2.dll6.0.6000.20716319,48807-Nov-200707:37x86

STATUS

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

MORE INFORMATION

For information about the FSCTL_DISMOUNT_VOLUME control code, visit the following Microsoft Web site:
http://msdn2.microsoft.com/en-us/library/aa364562.aspx
For information about the FSCTL_IS_VOLUME_MOUNTED control code, visit the following Microsoft Web site:
http://msdn2.microsoft.com/en-us/library/aa364574.aspx
This hotfix cannot resolve the problem for all optical disc drives. If this hotfix does not resolve the problem for the optical disc drive that you use, contact the manufacturer of your hardware for more information about how to resolve the problem.

For information about your hardware manufacturer, visit the following Web site:
http://support.microsoft.com/gp/vendors/en-us
For more information about media issues on a Windows Vista-based computer, click the following article number to view the article in the Microsoft Knowledge Base:
930917 An optical disc appears to be blank after you format the disc by using the Live File System component on a Windows Vista-based computer

Properties

Article ID: 944292 - Last Review: November 14, 2007 - Revision: 1.4
APPLIES TO
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
Keywords: 
kbautohotfix kbvistasp1fix kbexpertisebeginner kbhotfixserver kbqfe KB944292

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com