Error Message: <Systemroot>\System32\Mapisrvr.exe Cannot Access a Necessary File, "Gapi32.dll"

Article translations Article translations
Article ID: 320550 - View products that this article applies to.
This article was previously published under Q320550
Expand all | Collapse all

On This Page


When you run Norton WinDoctor on a Microsoft Windows XP-based computer, you may receive one of the following error messages:

Message 1
C:\Windows\System32\Mapisrvr.exe" cannot access a necessary file, "Gapi32.dll"
Message 2
C:\Winnt\System32\Mapisrvr.exe" cannot access a necessary file, "Gapi32.dll"
Additionally, if you try to use Norton WinDoctor from Symantec Corporation to repair this issue, WinDoctor reports that it cannot fix it, even though the file exists on the computer's hard disk.


This behavior may occur when you use Norton WinDoctor, and WinDoctor cannot locate the Gapi32.dll file in the Systemroot\System32 folder.

This is a known issue with Norton WinDoctor. It has been reported to occur with Norton Utilities 2002 v6.0 (of which Norton WinDoctor is a feature), and with Norton SystemWorks 2002 (of which Norton Utilities is a component product).

For more information, visit the following Symantec Corporation Web site:


To resolve this behavior, use one of the following methods.

Method 1: Copy the Gapi32.dll File to the Systemroot\System32 Folder

Copy the Gapi32.dll file to the Systemroot\System32 folder on the hard disk. To do this, follow these steps:
  1. Start Windows Explorer, and then locate the folder that contains the Gapi32.dll file. The Gapi32.dll file is located in one of the following folders:
    C:\Program Files\Common Files\System\Mapi\1033

    C:\Program Files\Common Files\System\Mapi\1033\NT
  2. Right-click the Gapi32.dll file, and then click Copy.
  3. Click the Systemroot\System32 folder that best applies to your situation:
    • <drive letter>:\Windows\System32\Mapisrvr.exe cannot access a necessary file, "Gapi32.dll"
    • <drive letter>:\Winnt\System32\Mapisrvr.exe cannot access a necessary file, "Gapi32.dll"
  4. On the Edit menu, click Paste.
  5. Quit Windows Explorer.
  6. Restart the computer.
For more information, visit the following Symantec Corporation Web site:

Method 2: Configure Norton WinDoctor to ignore the error

Configure Norton WinDoctor to ignore the error. Because the error message that is described in the "Symptoms" section of this article is an issue with Norton WinDoctor, and not an issue with Windows files, you may decide to ignore the error message.

For more information about how to configure Norton WinDoctor to ignore the error message, see the product documentation, or visit the following Symantec Corporation Web site:


For more information about Norton WinDoctor, or to contact Symantec Corporation, visit the following Symantec Web site:
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.
Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.


Article ID: 320550 - Last Review: January 25, 2006 - Revision: 3.3
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
kberrmsg kbprb KB320550

Give Feedback


Contact us for more help

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