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Filemapping size limit under Win98

I created a filemapping object using system paging file. Everything is ok under Window 2000, but when the same code is running under Win98 problem occurs. After using CreateFilaMapping, the first MapViewOfFile always failed, and GetLastError returns 8 (Not enough storage is available to process this command). At last I found that this has something to do with the size of the filemapping object which I've created. That's why I want know the limit.
Thanks.

peterchen092700

If you create a disk-file based mapping (on a drive with enough space), does it work then?

xutao

ASKER

But to create filemapping object based on disk file is not what I want.

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peterchen092700

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amp072397

xutao:

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xutao

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Any further suggestions? Or I will delete this question.

peterchen092700

again - make sure your swap file has enough room for the mapping.

The next limitation would be address space. If there's not enough contiguous address space, the mapping will fail.

(Address space has nothing todo with available physical memory - it's just that: the number used as address. While the 4G seem more than you ever need, it quickly scales down: 2G reserved for OS, and in the remaining must fil all allocations, all file mappings and all EXE's and DLL's (and the memory footprint of binaries is usually much larger than the file size)

Having said that, some 100..200MB should usually be available.

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Admin notified of user neglect. Force/accepted by

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