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Updated: March 28, 2003

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2


HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management


Data type Range Default value


0 | 1–128 (megabytes)



Establishes the maximum space in the paged pool that can be allocated by any process. Any attempt by a process to allocate more space in the paged pool will fail.


Value Meaning


The system calculates an optimal value for this entry based on the amount of physical memory on the computer, and adjusts this value if the amount of memory changes. This value is optimal for most systems.


Overrides the value calculated by the system and prevents the system from adjusting this value dynamically. This setting can degrade performance.

Activation Method

You must restart the computer before a change to this value takes effect.


  • Do not change the value of this entry. The system adjusts this value dynamically based on internal algorithms. Changing this value prevents the system from calculating an optimal value. This is likely to degrade the performance of your system.

See Also

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