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ARCHIVED: In Windows 3.x, what is the maximum swap file size I can use?

Note: The software discussed here is no longer in common use at IU, and UITS may no longer be able to verify this text's accuracy; additionally, the UITS Support Center may no longer have the materials needed to adequately support this software.

Windows 3.x determines your virtual memory limit by rounding the amount of RAM on your system to the nearest 4MB, multiplying by 4, and then subtracting the amount of the system RAM from the total. This is then the maximum amount of virtual memory (swap file size) you can use, provided you have sufficient unfragmented hard disk space. The multiplier of 4 is a default that you can change by editing the system.ini file. Use the setting "PageOverCommit= " in the "[386Enh]" section; the multiplier can be from 1 to 20.

Note: This information originally came from the Microsoft Windows 3.x FAQ maintained by Tom Haapanen and Software Metrics, Inc. This FAQ is no longer available. If you have problems with Windows 3.1, visit the Windows 3.1 FAQ sponsored by Logical Sky Corporation.

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Last modified on March 31, 2010.

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