Error Message: Invalid Setting in the Msdos.sys File: Doublebuffer

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This article was previously published under Q299308

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SYMPTOMS

When you start your Microsoft Windows Millennium Edition (Me)-based computer in Normal mode or Safe mode, you may receive the following error message:

Invalid setting in the Msdos.sys file: doublebuffer

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CAUSE

This behavior can occur if the Doublebuffer entry in the Msdos.sys file is invalid.

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RESOLUTION

To resolve this issue, delete the Doublebuffer line in the Msdos.sys file. To do this, follow these steps:

Click Start, point to Settings, click Control Panel, and then double-click Folder Options.
Click the View tab.
If it is not already selected, click the Show hidden files and folders option.
If it is not already cleared, click to clear the Hide protected operating system files (Recommended) check box.
Click Yes when you receive the following prompt
You have chosen to display protected operating system files (files labeled System and Hidden) in Windows Explorer. Are you sure you want to display these files?
and then click OK.
Click Start, point to Find, and then click For Files or Folders.
In the Search for files or folders named box, type msdos.sys. In the Look In box, click the drive on which Windows is installed (usually drive C), and then click Search Now.
Right-click the Msdos.sys file, and then click Properties.
Click to clear the Read-only check box, and then click OK.
Right-click Msdos.sys, and then click Open With.
In the Open With dialog box, click Notepad, and then click OK.
Delete the DoubleBuffer=number line.
On the File menu, click Save, and then close the file.
Restart Windows.

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MORE INFORMATION

For additional information about editing the Msdos.sys file, click the article number below to view the article in the Microsoft Knowledge Base:

118579 (http://support.microsoft.com/kb/118579/EN-US/ ) Contents of the Windows Msdos.sys File

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APPLIES TO

Microsoft Windows Millennium Edition

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kberrmsg kbprb KB299308

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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