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re: Question about 'What to do about error messages during Windows startup'
Wednesday, February 18, 2004 at 12:22 pm
Windows 95 Annoyances Discussion Forum
Posted by naruto-kun
(1 messages posted)
i find this on microsoft, i hope that this works.
....
This article was previously published under Q225497
SYMPTOMS
Under some circumstances Windows 95 may fail to boot, and will display the following
error message:
Error: An I/O subsystem driver failed to load Either a file in the .\iosubsys subdirectory
is corrupt or the system is low on memory.
CAUSE
This problem may occur when all memory below 1MB is allocated prior to initialization
of Ios.vxd. Ios.vxd must allocate memory below 1MB for use as real-mode buffers.
If Ios.vxd can't allocate this memory, it fails to load, which in turn causes Windows
95 to fail to boot.
Memory below 1MB is typically reserved for components that specifically request it.
However, it is possible that Windows 95 will allocate all memory between 1MB and
16MB during initialization, forcing system DMA buffers (which must lie below 16MB)
below 1MB, and therefore preventing Ios.vxd from being able to allocate memory below
1MB.
RESOLUTION
This problem can be worked around by adjusting the maximum cache size allocated by
Vcache.vxd. Vcache.vxd allocates an initial cache size that is no larger than 9MB.
Setting the maximum cache size to less than 9MB also reduces the initial cache size,
freeing up memory below 16MB and allowing Windows 95 to boot properly.
The maximum cache size is set by adding a "maxfilecache" line to the vcache section
of System.ini. The following example shows what an entry in System.ini would look
like to set the maximum cache size to 6MB:
[vcache]
maxfilecache=6144
STATUS
This is a known problem in Windows 95. It has been fixed for Windows 98.
it works for me =)
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 |  | re: Question about 'What to do about error messages during Windows startup' (naruto-kun: Wed, Feb 18, 2004, 12:22 pm) |
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