BUG: Protected-Mode GlobalCompact() Return Not Free Memory

Last reviewed: January 5, 1995
Article ID: Q76686

The information in this article applies to:

Microsoft Windows Software Development Kit (SDK) for Windows versions 3.1 and 3.0

SYMPTOMS

When Windows is running in one of its protected modes, the value returned by the GlobalCompact() API does not accurately reflect the amount of free memory available in the system.

In enhanced mode, Windows can swap memory objects to disk. This process takes a long time relative to accessing an object in memory. Therefore, GlobalCompact() returns the amount of memory available without performing any paging.

In standard mode, GlobalCompact() never reports more than 1 megabyte (MB) of memory free because of a memory allocation limit on the 80286 chip.

STATUS

Microsoft has confirmed that this problem occurs in Windows versions 3.0 and 3.1. We are researching this problem and will post new information here as it becomes available.

Additional reference words: buglist3.00 buglist3.10 3.00 3.10
KBCategory: kbprg kbbuglist
KBSubcategory: KrMm

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Last reviewed: January 5, 1995
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