ID Number: Q24910
4.00 5.00 5.10 6.00 6.00a 6.00ax 7.00 | 5.10 6.00 6.00a
MS-DOS | OS/2
Summary:
SYMPTOMS
Within MS-DOS versions 2.x only, recurrent use of an exec()
function or a spawn() function with P_OVERLAY eventually causes a
return indicating that there is no more available RAM memory.
CAUSE
This is an MS-DOS versions 2.x problem, the exact nature of which
is unknown. Microsoft has traced the problem to the point where
MS-DOS corrupts memory, and memory is not freed back to MS-DOS
versions 2.x.
RESOLUTION
If you encounter this problem, upgrade to MS-DOS versions 3.x or
higher, which do not have this problem.
Apparently only the exec() family [or spawn() with P_OVERLAY
specified] is affected by this MS-DOS problem. The spawn() family
(except when P_OVERLAY is specified) seems to work correctly.
Additional reference words: 5.10 6.00 6.00a 6.00ax 7.00