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INFO: Configuring Parsing of the AUTOEXEC.BAT File

This article was previously published under Q124551
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry

Windows parses the AUTOEXEC.BAT file during startup by default, whichresults in the appending of the path statement in the AUTOEXEC.BAT file tothe system path created by Windows.

You can configure parsing of the AUTOEXEC.BAT file in the Registry by doingthe following:

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
  1. Run REGEDT32.EXE.
  2. Modify the following value within HKEY_CURRENT_USER:

    Software\Microsoft\Windows NT\CurrentVersion\Winlogon\ParseAutoexec

    1 = autoexec.bat is parsed
    0 = autoexec.bat is not parsed
This has no effect on the parsing of AUTOEXEC.NT or CONFIG.NT by the MS-DOSor 16-bit Windows environments (VDMs).

NOTE: Support for configuring the parsing of the AUTOEXEC.BAT file is alsoprovided via the REGKEY.EXE file included with the Windows NT 3.5 ResourceKit.
Winlogon boot ParseAutoexec

Article ID: 124551 - Last Review: 03/20/2007 18:40:10 - Revision: 3.1

Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Business, Windows Vista Home Basic 64-bit edition, Windows Vista Home Premium 64-bit edition, Windows Vista Business 64-bit edition, Windows Vista Starter, Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition, Microsoft Windows NT Workstation 3.5, Microsoft Windows NT Workstation 3.51, Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 3.51, Microsoft Windows NT Server 4.0 Standard Edition

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