MS-DOS-Based Apps May Not Time-Slice Well Under WFWG 3.11 (115200)
The information in this article applies to:
- Microsoft Windows for Workgroups 3.11
This article was previously published under Q115200 SYMPTOMS
When 32-bit file access is enabled and 32-bit disk access is not, your
computer does not accept keyboard input and then appears to stop responding
(hang) in either an MS-DOS Prompt session or in an MS-DOS-based
application. After you type a few characters, the machine appears to hang,
and then the buffer empties, effectively pasting your text into the
application very quickly.
NOTE: Many machines are configured to behave this way (for example, those
with disk drive controllers that are not Western Digital (WD) 1003
compatible and those using disk-compression schemes other than MS-DOS 6.2
DoubleSpace).
CAUSE
When 32-bit file access is enabled without 32-bit disk access being
enabled, Windows for Workgroups 3.11 uses the real-mode mapper. Since the
real-mode mapper presents a synchronous interface to 32-bit file access, it
prevents other system events from occurring simultaneously with disk
access. This problem occurs when a large amount of data has accumulated in
the cache and must be flushed immediately because of a disk reset (CTRL+C)
or critical error. During the time that the data is being written to the
drive, other system events are ignored.
| Modification Type: | Major | Last Reviewed: | 10/27/1999 |
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| Keywords: | KB115200 |
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