Disabling the POSIX Subsystem (101270)


The information in this article applies to:

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows NT Server 3.1
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Workstation 3.1
  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0
This article was previously published under Q101270

SUMMARY

There is little to gain by disabling the POSIX subsystem in Windows NT because POSIX is only started once a POSIX-based application is started. There are no memory savings or performance increases.

MORE INFORMATION

If you want to disable the POSIX subsystem, you can do so by going to the following subkey and deleting the POSIX value:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Subsystems

NOTE: The same is true for the OS/2 subsystem; until an OS/2-based application is started, the OS/2 subsystem server is not loaded.
Modification Type:MajorLast Reviewed:5/6/2003
Keywords:kb3rdparty KB101270
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